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the last one was amazing!! I always thought the figures are NOT up to scale. But you helped to clarify that PS will be up to scale and in DS they might not be !!
This is the best video on GMAT I have ever seen, poor that we don't have a reward system for youtube videos. But I am going to pay you my Gurudakshina(Gift to teacher) by making the best of this strategies and getting a good score. Thanks a lot again for giving me the confidence to get the UNGETTABLE!!
You are just amazing! Thank you so much for your help. I'm taking a GMAT based test in a couple of days and I'm much more confident thank to your strategies.
My pleasure. Glad it helped. Are you taking the Executive Assessment? Or something else? Good luck and let us know how it goes! P.S. If it is the Executive Assessment, I think you'll benefit from these videos I put on UA-cam as well: ua-cam.com/play/PLlVPX9WC0Mypp19BBcboncdSdN3wszhMT.html
wow....ive been studied from the GMAT review books that they sell on their website and just from watching these part 1 and part 2 videos I've learned more than the books can offer. thank you so much for your help!!!!
Wow! I'm currently 2 classes into a 4 class GMAT prep course, and the strategy of plugging numbers into variables just probably boosted my confidence by X% (X being a LOT :)) Thank you.
+Todd Cowie Wish you had found me before signing up for the other prep course! ;) But I'm glad you found this strategy helpful. Let me know what else I can do to help.
Thanks Brett, I appreciate the video. The make up numbers strategy was the best. I'm new to GMAT so I haven't figured out my struggles. Everything is a struggle. Thank you for the videos
Thanks again Brett. I think making up numbers is easily the best strategy - it's a really quick way of getting to the right answer if you struggle with algebra etc.
Thank you so much! Your videos are really helpful. Last one didn't just save me time but also helped me see geometry questions from a different and fresh POV.
Dear Brett, The video has not only taught me a great deal about thinking style but also it has shown me ways to plan and to speed up techniques in order to efficiently arrive at the correct answer. Indeed, picking numbers is an interesting way to solve difficult word problem in variables rather than applying algebra directly as at times the problem becomes very hard with more than three variables and a small mistake in the formulation of equation may lead to wrong answer. Thanks a lot.
Thank you Brett. This's my first video I watched from your channel , and you made me consider GMAT as piece of cake :) . We really appreciate your help .
Hi Brett...First up, that is one heck of a video for strategy! Good on you mate!!! I'd like if you could possibly throw some light on the co-ordinate geometry aspect of the GMAT and cover the same in terms of strategy and approach. Thanks a lot !
James Tarun Glad you liked it! And you're in luck -- I've got you fully covered on GMAT coordinate geometry here: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-coordinate-geometry/. Enjoy!
I take the GMAT next week and I'm not confident/underprepared so I'll most likely have to retake it but I will definitely enroll in your course when prepping for my second attempt. Great strategies!
Thanks Melanie! Confidence is huge for your test-day success so do whatever you can over the next week to build your confidence (you may surprise yourself!). But assuming you do end up needing to retake it, I know you'll love my course and I'll look forward to working with you.
Eye balling is a brilliant move. Am not too good with formulae and all but am pretty good with intelligent guessing, and this strategy really takes the cake considering Geometry has a lot to do with formulae.
Thank you Brett! Your videos are so simple to understand and follow. I really like the "Make Up Numbers" strategy and I am getting ready to learn more about "WIBNI" strategy from your blog.
Those are some really good strategies there. I have a math background so I usually rush in with equations and formulas but I am going give this a try when I practice math. I found the 4th one really interesting because I drew the figure with radius and wasted so much time in calculating the angle in the sector only to get it wrong
Thank you for the video! 1st & 2nd strategies are the most useful in my opinion, 4th strategy - a little too risky for me, but definitely will be of help, if no scientific method comes up in mind. 3rd strategy - haven't looked it up on the blog yet :)
Bret, thanks for uploading these videos. They are really informative. I want to ask you that as far as the verbal section is concerned, the reading comp. questions reduce my overall speed in the section. Can you suggest some strategies to deal with that in order to maximize my score?
First of all, things should still average out if you treat reading comp correctly. What I mean by that is, imagine you have four questions on the quant section. In theory, it should take you about 8 minutes to answer those 4 questions (~2min per question). On reading comp, it should still take you about 8 minutes to answer 4 questions, it's just that the distribution is different. It may take you 5 minutes just to read the passage, but then if you read the passage correctly, it should set you up to only have to spend 0:45 - 1:00 answering each of the four questions -- which works out to the same 8-ish minutes total. Does that make sense? Plus, you'll find that a lot of the sentence correction questions won't take you a full 2 minutes, and you can use that extra time on reading comp. The biggest way to improve your reading comp speed is to change how you read the passages themselves. The key, as I explain in this "tip of the week," is to read for "big picture": www.dominatethegmat.com/2011/10/gmat-reading-comprehension-tip-of-the-week/. Hope this helps!
Hello Brett, Great material for beating the GMAT. Please add more to the last strategy, drawing & guessing on geo figures. I have not review the third strategy yet, but will in the next few days. If you have a book in the works I would buy it in a heart beat. PS - while tables and graphs are few and far between, I can not guess or measure the figures (EG population growth, sales from one year to the next).
Thanks for the kind words? FYI, I provide a more in-depth look at that strategy, including how it applies to Data Sufficiency questions, here: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-geometry-overview-figures-and-techniques/
I just started preparing for GMAT..after watching first and second videos i felt it was amazing and more informative and i like the way you explain the things and also i am looking forward to see and implement the techniques and methodologies you explained.. As i am aiming to a get a score of 720+, your assistance and guidance would help me me a lot..
Thanks Suresh! I'm glad you found this video helpful. If you're shooting for 720+, I would recommend our comprehensive course that covers all aspect of the GMAT: www.dominatethegmat.com/video-purchase/gmat-online-test-full-course/. I'm looking forward to working with you!
It's funny, after all the months of content studying I have committed myself to, I could never figure out why I have been making the same mistakes. Strategy! I always flounder to solve because I think I can solve; I know I can solve. Your approach, one that I have been familiar with in many encounters, was expressed in a way that I can actually adopt to save time. Thank you! Also, for the question on criteria 2, 13:00 minutes in, L=10, X=5, J=5, Y=15 shows both A or E could be correct. Readjusting the answers allowed me to confirm A.You hint at this possibility, but I figure I'd mention it.
I haven't taken the GMAT yet but I found the strategy for variables and figures most interesting. I didn't understand the WIBNI maybe because I am yet to look it up on your blogs. Hopefully it will be easy to understand and apply.
+darek459 Glad you found this video helpful! Here's a direct link to an article I wrote about WIBNI: www.dominatethegmat.com/2012/09/gmat-strategies-the-wibni-gmat-math-trick/.
Mr. Ethridge, Thank you for such valuable videos. I would just like to inquire about where to find the WINBI strategy because I couldn't find it on the Blog.
You're welcome! I'm glad you're enjoying the videos. The WIBNI strategy is explained in the "Problem Solving" section of my Full GMAT Prep Course: www.dominatethegmat.com/video-purchase/full-gmat-prep-course/ . Enjoy!
@dominate the GMAT - In the geometry problem how did u assume the length of the parallel line segment PQ is one third the length of the diameter. That is pure approximation. Also, even if we scale the figure and try to find the answer we are left with two very close options, which might leave us with doubt in the end. And the doubt would make us think if we did actually choose the correct approximation to begin with.
Good point, Hardik, and that's exactly what I explain in the video. It is an approximation. The "eyeball technique" isn't a foolproof way to get THE one right answer (although sometimes it is), but it's a great way to eliminate some clearly wrong answers and improve your guessing odds in the event that you don't immediately know how to do the math. In terms of how I approximated the length of PQ, I used the fact that problem solving figures are assumed to be drawn to scale, and I encouraged you to literally hold a piece of paper up to your computer screen to use the diameter of 18 as a scale key. Again, it's not an exact science, but you can get pretty darn close.
Great approach, Brett. Interesting enough, but for the Sample Question: Variables Strategy (10 min 02 sec) if X=2, Y=6, Jim=2 and Lois=4, the right answer is E and not A.
Notice that with your numbers, answer choice A also works. Every once in a while, the variables you choose may result in two potential "right answers" (purely by coincidence). If that happens, simply work the problem again with a different set of variables and it will eliminate one of those answers, leaving the one true correct answer. If you follow my rules for making up numbers, this occurrence rarely happens.
Hi Brett, these strategies are indeed amazing, and I have learned the second and the last with the diagram, they are spot on. However, I am gonna need more help on the working backwards and the wouldn't it be nice if.. strategies. I shall refer to your website just as advised. thank you again for this video, it has been an enlightening experience for me!
i have to say strategy 1 and 2 is what we all learned during high school and is basically the cornerstone of solving any algebraic equations. But bc this is a gmat, I would say the last one is the most helpful as we are conditioned to solve problems by showing the work during highschool but on the gmat, the points only goes towards the right answer not the work.
Awesome video, Thanks for uploading. I am going to watch all of your videos, very helpful. For last question, PQ seems little bit longer than the OR, My answer would be B. I cant help but my mind says the answer should be B. Since there is no much difference between A & B but B seems more satisfying :)
Yeah, the eyeballing strategy won't always get you down to exactly one clearly right answer. Sometimes it does, but sometimes it only gets you in the ballpark. Still, in cases where you may not remember how to do the actual geometry, getting down to a 50-50 guess is a lot better than 1 out of 5.
There are so many comments and I tried going through the first few... but is there actually an explanation on the geometry question we were eyeballing? Trying to see if my thought process actually worked... Also, read up on WIBNI Blog... will do so again, to try and visualize it for myself as I am a visual learner. Your videos are great, thank you so much!!
My pleasure, glad you found it helpful! I teach the actual geometry for the "eyeball" question in my course, but here's a quick explanation. The key is to recognize that an inscribed angle has 1/2 the degree measure of the arc it creates. And given the rules of parallel lines cut by a transverse, that means arcs OP and QR both measure 70 degrees, leaving 40 degrees for arc PQ. So the question becomes, what does 40 degrees translate to in terms of an actual length? Well since there are 360 degrees in a circle, that means arc PQ represents 1/9 of the circumference of the circle (40/360). The circumference of the circle is 18pi (we're told the diameter is 18, so the radius is 9), so the arc is 1/9 of 18pi, or 2pi.
Hi Brett! Thanks for the videos! Very helpful for myself and I am sure many others. I wish to apply to Ontario based business schools that do not mention on their websites that they consider the essay or integrated reasoning. Should I almost completely skip these sections to help prevent mental fatigue?
I wouldn't advise "almost completely" skipping those sections, no. Whereas a lot of schools don't but much attention on the essay or IR, they do see it as a red flag if your essay and IR scores are disproportionately worse than your main GMAT score. I imagine that would apply to your Ontario schools. If you get a 650 on the main part of the GMAT but a 1 or 2 on the essay and IR sections, it could be a problem for you. Whereas you don't need to over-tax yourself and try to get a 6 or 8 respectively, I would suggest at least making some effort on those sections. Prepare for the extra "mental fatigue" when you take your practice tests and you should be fine.
I struggle with the working backwards problem. I found that working algebraically for the mixture problems suits me better. May be I am not using the working backward strategy efficiently or it may not yet be brain-wired into me. Please comment. Been studying for gmat for more than 3 months. Also, I love mike from magoosh for his delivery style and the humble nature. Now, I am your great fan as well.
Awesome! Yeah, mixture problems are perfect candidates for working backwards, but so are a large number of other common GMAT words problems as well as numerous algebra and arithmetic problems. You might want to check out our a-la-carte lesson on non-standard math strategies, as there's a worksheet with it that will give you additional practice applying the strategies: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-strategies-non-traditional-math-techniques/. And yeah, Mike is great. I met him at the AIGAC conference in Virginia last year. Good luck to you and let me know how else I can help!
Awesome Video Brett, I really got confidence on seeing your video. As I am reaching towards my GMAT exam Date. I am struggling in RC's and Verbal Questions. Please help me, so that How would I approach towards these questions keeping Time management in mind.
Awesome! Glad you liked the video. Here's my lesson on RC's: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-reading-comprehension/. I think it'll really help you. And then I have lessons on all the other verbal topics as well: www.dominatethegmat.com/video-purchase/a-la-carte-topics/#GMATVerbal. Enjoy!
Great Nitipriya! I'm glad you found this video helpful. You can find more strategies in my courses here: www.dominatetestprep.com/store?tag=gmat. You can also follow my social media channels and subscribe to this UA-cam channel so that you're alerted whenever I upload new videos. Enjoy!
The most helpful, I think, will be the variable strategy. I like numbers and I'm more comfortable working with them. The most challenging will likely be the really hard strategy-WIBNI. Great video, very encouraging. I am concerned that when I sit down and start the timed test (regardless of practice or real test) that I am going to freeze up and experience blank thoughts...
Familiarity and practice help, Patricia. It's like a basketball player who finds himself at the foul line with the game on the line. Is there pressure? Sure. But he's shot 10,000 foul shots in his life, so his muscle memory just sort of takes over. Keep that in mind.
I'm most concerned about timing as timing has always been a struggle of mine in standardized test. I'm also concerned about verbal section as I am usually weak in that especially reading comprehension
+Vignesh Arasu I have quite a few articles and free videos to help you with the time management side of the GMAT. You can see them here: www.dominatethegmat.com/?s=time+management&x=0&y=0. In terms of reading comprehension, I teach that in detail here: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-reading-comprehension/. Hope this helps and good luck!
You're the second person who has said that recently about the video not working on my website. Would you mind providing the link you're talking about so that I can look into it? And what e-mail address is your account with my website tied to? I'll look into it for you. Thanks!
This was very helpful, but for the figures I often have trouble trusting them too much. For example in the final question, I took a screenshot and mapped the smaller, parallel line to the diameter and it came out to much closer to half of the diameter than 1/3 (which would be = 6). So I'm wondering at what point do we take a different route to try to get a more exact answer? I understand that it's time permitting, it's just frustrating because if you solve for the minor arc using (40/180) = (x/9pi), the answer does come out to the low 6.something, which is the answer you got to assuming the smaller line was about a third of the diameter. Any suggestions on when to try to solve this out rather than take the 50/50 guess?
The "eyeballing" strategy is no longer as relevant since the new version of the GMAT (formerly called the GMAT Focus Edition, now just called the GMAT Exam) no longer contains geometry. Just focus on Working Backwards, Making Up Numbers, and WIBNI! There are a couple other useful strategies that we discuss in our complete GMAT Prep Course, fully updated for the latest edition of the exam: www.dominatetestprep.com/gmat-focus. Hope this helps!
Glad you've been finding them helpful! I know you'll find my full course even more so :) Do you mean that you're planning on taking the GMAT 11 months from now? If so, my advice would be not to drag the process out that long. Most people only need 2-3 months (~80-100 hours) to fully prepare for the GMAT from scratch. If you have the time to start studying for it now, then definitely do so. Track your practice test scores and make sure you're progressing as desired, but then go ahead and pull the trigger on taking the real thing as soon as you're ready -- possibly as early as September or October. Your score is good for 5 years, so you might as well get it out of the way! (In terms of other advice, balance your studying across the "Success Triad" principles I discussed in Part 1; my course will provide you with the ideal game plan, teach you all of the most important content and strategies, and give you tons of practice). Good luck!
Glad you liked it! I address Strategy #1 in more detail in my Free Session, which you can sign up for here: www.dominatethegmat.com/gmat-free-session/.
hello, 2nd strategy was really good nd help ful . the last one was not that help ful as we can't consider the length directly in that way but still it may help some times as some thing better then nothing.thank you for the good strategies.
Do you have a course that I can take for Data Sufficiency questions in general, and not specific areas of math? My math is strong, and I don't have any problems with Problem Solving questions. But DS questions completely throw me off and I miss small details. Got a 42 in Q on my first attempt yesterday, really want to improve on that and I know most of the ones I got wrong were most likely DS questions..
I just knew about the GMAT five days ago when I applied for MBA . I did not take any tests or course. They asked me to get at least 400 to be admitted. Help me to reach this goal by any means.
That's totally normal, and the good news is that all of the math tested on the GMAT can be learned (or re-learned) in a fairly short amount of time. We have a complete math review in our GMAT Quant Course: www.dominatethegmat.com/gmat-math-course/. Some geometry concepts are tested more than others (e.g. right triangles) so don't get lost in the weeds!
Thank you for the videos, but no need to estimate on this one: Since the alternate interior angles are the same, the other arc on the top right is also 70 degrees. The bottom is a semi circle, so it is 180 degrees. Subtract 70 and 70 and 180 from 360 (a full circle) and you are left with 40 degrees. 40/360 is 1/9. The diameter of the full circle is pi times D, or 18pi. So 1/9 of 18pi is 2pi (sorry i don't have the pi symbol).
You're absolutely right about the mathematical solution, but the point with this video is that sometimes you may not know how to do the math, and you need a strategy to still get a right answer. If you know the math, go for it! But even if not, I still want you to be able to get right answers :) That's what dominating the GMAT is all about!
I do cover a sample IR problem in another video on this UA-cam channel, so browse for that. Also, here's an article I wrote for the accepted.com blog with three tips for dominating Integrated Reasoning on the GMAT: blog.accepted.com/3-keys-to-dominating-gmat-integrated-reasoning/. Hope it helps!
Hi, Brett! You are a magician! Your video about strategies is amazing! Especially I liked making up numbers and WIBNI! I read an article about WIBNI on your website and I think that this principle has a much wider application to life than just beating the GMAT :) I not really liked the example of eyeballing because to me PQ is a little bit less than a half of OR and I even measured it on my screen with a ruler to check myself, so on my screen PQ is 2cm and OR is 4,4 cm so by using this strategy I would more likely choose E as an answer, that's why I would chose some different example for the demonstration of this strategy. Just wanted to let you know, because I am very grateful for your videos and I like them a lot and would be glad if my advice would help you somehow to make them even better. :)
Thanks Anna! I'm glad you liked the strategies -- and yes, WIBNI is a great tool for life as well :) Thanks for your feedback on the eyeballing example. Best of luck to you and let me know how else I can help!
Bro, regarding that make up numbers strategy, if we assume x as 3, and assume lois has 6 dollars and jim has 3 dollars, the total comes to 9 which is y. Here, we have two choices which gives us the answer. a. y-x/2 i.e 9-6/2 equals 3, which is what jim has and option b. y-2x i.e 9-2*3 equals 3 which is also the same no. of dollars which jim has. how do we zero in on the correct answer ?
Occasionally that happens, but very rarely -- especially if you avoid 0, 1, and numbers already in the problem when choosing your numbers. That said, if it does, just choose a second set of numbers, work the problem again, and check them against the two answer choices that are still in the running. One of them will emerge as the winner (i.e. the answer choice that the new numbers also work for).
Glad to hear it! Yeah, it takes a little practice until these strategies become second-nature. Stick with it! And whenever you're ready to dive even deeper into the other content areas and strategies that will help you dominate the GMAT, you can sign up for one of our comprehensive courses here: www.dominatethegmat.com/video-purchase/. Let me know how else I can help!
This is excellent! Hello Brett! Prospective student for Wake Forest! Take my test March 7th and need about a 650 average! But I wanna shoot higher!! If I am starting fresh with studying! Do I have enough time and how many hours a day that looks like?
Not sure I can help out a prospective Demon Deacon, being a Blue Devil myself... ;) Just kidding! Send me an e-mail at brett@dominatethegmat.com and I'll send you my thoughts!
You can get more on WIBNI in my comprehensive GMAT quant course, but in the meantime, here's a pretty thorough article I wrote about the concept, with examples: www.dominatethegmat.com/2012/09/gmat-strategies-the-wibni-gmat-math-trick/
+MzlovingMe Edwards Check out that other link I posted for you and choose one of our Full Courses. It's all explained in great detail in the more comprehensive video lessons!
Thank-you for the video, I really like it, but unfortunately I fall under category 3 and I know a lot of these strategy before even watching this video, What I am concerned about is the verbal part of gmat, I am really very weak in that, could you please upload some of the videos which help me in that...
+Aditya Bajpai Go ahead and search my channel for all videos -- I have uploaded several good videos with important GMAT verbal strategies, especially for CR and SC. Additionally, it sounds like the best thing for you would actually be to take my comprehensive GMAT Verbal Course where I teach all of the requisite verbal content and strategies in detail. You can learn more and register here: www.dominatethegmat.com/video-purchase/full-verbal-section/
+Mokshada Pande You can certainly "solve" the question the traditional mathematical way. But my point in this video is, what happens if you don't know how or if you forget the formulas or whatever? Your goal is still to get a right answer. This strategy helps you get a right answer at all costs. And it's not assumptive at all if you know the figure is drawn to scale. Why not rule out obvious wrong answers just by eyeballing the figure? It helps you get to the right answer, and that's ultimately what you're trying to do. Remember, the GMAT is a means to an end. Sometimes you have to treat it that way!
You'd be surprised at how infrequently the answer choices are all so close that only a careful calculation will yield the right answer. But "no," the exclusion strategy doesn't work all the time. Sometimes it's only helpful in eliminating two or three clearly wrong answers, which is still a great outcome and at worst improves your guessing odds!
I'll give you a hint: It starts by recognizing that an inscribed angle has a degree measure that's 1/2 the arc it creates. So, arc OP is 70 degrees. You can also then recognize that angle QPR is also 35 degrees since PQ and OR are parallel. That makes arc QR 70 degrees as well. See if that helps. BTW, this problem is solved mathematically in my circles video lesson that you can get here: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-geometry-circles/
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the last one was amazing!! I always thought the figures are NOT up to scale. But you helped to clarify that PS will be up to scale and in DS they might not be !!
This is the best video on GMAT I have ever seen, poor that we don't have a reward system for youtube videos. But I am going to pay you my Gurudakshina(Gift to teacher) by making the best of this strategies and getting a good score. Thanks a lot again for giving me the confidence to get the UNGETTABLE!!
So glad you liked it, and thanks for the positive feedback. Best of luck to you and don't hesitate to let me know how else I can help!
You are just amazing! Thank you so much for your help. I'm taking a GMAT based test in a couple of days and I'm much more confident thank to your strategies.
My pleasure. Glad it helped. Are you taking the Executive Assessment? Or something else? Good luck and let us know how it goes! P.S. If it is the Executive Assessment, I think you'll benefit from these videos I put on UA-cam as well: ua-cam.com/play/PLlVPX9WC0Mypp19BBcboncdSdN3wszhMT.html
wow....ive been studied from the GMAT review books that they sell on their website and just from watching these part 1 and part 2 videos I've learned more than the books can offer. thank you so much for your help!!!!
Gabe Charles Thanks for the great testimonial. Glad you've enjoyed them! Study hard and let me know how else I can help.
Thank you! I think the strategy about making up numbers and also knowing the p.s. figures are to scale will help a whole lot!
You're welcome and thanks for sharing. Good luck applying those strategies and let me know how else I can help!
Love the Eye Ball the answers strategy when you have a drawing.
Awesome, glad it helped!
Well, it is my first time getting to know these strategies and I am looking forward to using it as I begin studying for the GMAT.
Wow! I'm currently 2 classes into a 4 class GMAT prep course, and the strategy of plugging numbers into variables just probably boosted my confidence by X% (X being a LOT :)) Thank you.
+Todd Cowie Wish you had found me before signing up for the other prep course! ;) But I'm glad you found this strategy helpful. Let me know what else I can do to help.
Yeah me too! I spent a boatload of $$$$ so far. I may however be buying a couple of your a la carte classes. Thank you so much for your help thus far.
Todd Cowie Sounds good. And I've got a "Common GMAT Word Problems" a-la-carte course coming soon, so be on the lookout for that as well.
Thanks Brett, I appreciate the video. The make up numbers strategy was the best. I'm new to GMAT so I haven't figured out my struggles. Everything is a struggle. Thank you for the videos
The most helpful of the criteria was Figures. I definably learned something about here.
Thanks again Brett. I think making up numbers is easily the best strategy - it's a really quick way of getting to the right answer if you struggle with algebra etc.
Glad you liked that Sam! Best of luck to you, and don't hesitate to let me know how else I can help.
I am pumped to take the GMAT! Your videos are motivational and I have confidence that I can do well! Thank you so much!
This is absolutely incredible thank you Bret
You're welcome. Good luck and let me know how else I can help.
Thank you so much! Your videos are really helpful. Last one didn't just save me time but also helped me see geometry questions from a different and fresh POV.
Awesome, Kritika! I'm glad you found it helpful. Best of luck to you on the rest of your GMAT journey. Let me know how else I can help.
Dear Brett,
The video has not only taught me a great deal about thinking style but also it has shown me ways to plan and to speed up techniques in order to efficiently arrive at the correct answer. Indeed, picking numbers is an interesting way to solve difficult word problem in variables rather than applying algebra directly as at times the problem becomes very hard with more than three variables and a small mistake in the formulation of equation may lead to wrong answer.
Thanks a lot.
Thank you Brett.
This's my first video I watched from your channel , and you made me consider GMAT as piece of cake :) .
We really appreciate your help .
Thank you ...surprisingly i tried to solve the problems using the same strategy when u said pause and try yourself!
Variables and figures are definitely the most helpful! You have helped me immensely. You also helped with the factorials
Glad to hear it!
The last strat will literally save me on the test!!! Thank you!
My pleasure. Glad you found it helpful!
Hi Brett...First up, that is one heck of a video for strategy! Good on you mate!!!
I'd like if you could possibly throw some light on the co-ordinate geometry aspect of the GMAT and cover the same in terms of strategy and approach.
Thanks a lot !
James Tarun Glad you liked it! And you're in luck -- I've got you fully covered on GMAT coordinate geometry here: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-coordinate-geometry/. Enjoy!
Thanks a lot, Brett. Your breakdown is simple and straightforward.
I take the GMAT next week and I'm not confident/underprepared so I'll most likely have to retake it but I will definitely enroll in your course when prepping for my second attempt. Great strategies!
Thanks Melanie! Confidence is huge for your test-day success so do whatever you can over the next week to build your confidence (you may surprise yourself!). But assuming you do end up needing to retake it, I know you'll love my course and I'll look forward to working with you.
thanks a lot brett. im little weak in math so using this strategies do they help me out in every aspect of math.
Eye balling is a brilliant move. Am not too good with formulae and all but am pretty good with intelligent guessing, and this strategy really takes the cake considering Geometry has a lot to do with formulae.
Thank You Brett for another amazing lesson. I think the strategy for the figures criteria is the most amazing , but i have'nt seen the WIBNI yet.
Thank you Brett! Your videos are so simple to understand and follow. I really like the "Make Up Numbers" strategy and I am getting ready to learn more about "WIBNI" strategy from your blog.
+Pauline Singleton Glad you're finding them helpful! Good luck, study hard, and let me know how else I can help.
Those are some really good strategies there. I have a math background so I usually rush in with equations and formulas but I am going give this a try when I practice math. I found the 4th one really interesting because I drew the figure with radius and wasted so much time in calculating the angle in the sector only to get it wrong
Awesome, glad it helped. Yeah, remember that your goal is to get right answers, not to impress your high school algebra or geometry teacher!
Geometry tip was most helpful for me. TY Brett
My pleasure. Glad it helped!
Thank you for your video. Very helpful. Strategy 4 is an excellent exercise in lateral thinking.
OMG, it is really helpful, Im worse at maths, and i thought it was impossible for me to take GMAT test, but you are giving me hope and light.
Glad to hear it! Don't hesitate to let me know how else I can help!
You are a great guy, Brett. It is obvious. Thanks
Thanks!
Making up numbers is my go to and WIBNI is new to me. Thank you Brett this video was helpful.
+Mary Mendy Glad it helped! Good luck on the GMAT and don't hesitate to let me know how else I can help.
Thank you for the video! 1st & 2nd strategies are the most useful in my opinion, 4th strategy - a little too risky for me, but definitely will be of help, if no scientific method comes up in mind. 3rd strategy - haven't looked it up on the blog yet :)
Simply Brilliant. Great Job Brett. One of the very best approaches.
Kartik Rao I appreciate it! Glad it helped.
Great strategies! Thank you!
My pleasure. Glad you found them helpful!
Thanks Brett for your explanations! Your make up numbers strategy is especially helpful!
+Michael Fuchs Glad you found it useful! Study hard and let me know if there's anything else I can do to help between now and test day.
I think for me, the "Variables" strategy will prove most useful. Thanks for the video!
I like the variables strategy, I'm not sure about WIBNI
Bret, thanks for uploading these videos. They are really informative. I want to ask you that as far as the verbal section is concerned, the reading comp. questions reduce my overall speed in the section. Can you suggest some strategies to deal with that in order to maximize my score?
First of all, things should still average out if you treat reading comp correctly. What I mean by that is, imagine you have four questions on the quant section. In theory, it should take you about 8 minutes to answer those 4 questions (~2min per question). On reading comp, it should still take you about 8 minutes to answer 4 questions, it's just that the distribution is different. It may take you 5 minutes just to read the passage, but then if you read the passage correctly, it should set you up to only have to spend 0:45 - 1:00 answering each of the four questions -- which works out to the same 8-ish minutes total. Does that make sense? Plus, you'll find that a lot of the sentence correction questions won't take you a full 2 minutes, and you can use that extra time on reading comp. The biggest way to improve your reading comp speed is to change how you read the passages themselves. The key, as I explain in this "tip of the week," is to read for "big picture": www.dominatethegmat.com/2011/10/gmat-reading-comprehension-tip-of-the-week/. Hope this helps!
Hello Brett,
Great material for beating the GMAT. Please add more to the last strategy, drawing & guessing on geo figures. I have not review the third strategy yet, but will in the next few days. If you have a book in the works I would buy it in a heart beat. PS - while tables and graphs are few and far between, I can not guess or measure the figures (EG population growth, sales from one year to the next).
Thanks for the kind words? FYI, I provide a more in-depth look at that strategy, including how it applies to Data Sufficiency questions, here: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-geometry-overview-figures-and-techniques/
I just started preparing for GMAT..after watching first and second videos i felt it was amazing and more informative and i like the way you explain the things and also i am looking forward to see and implement the techniques and methodologies you explained.. As i am aiming to a get a score of 720+, your assistance and guidance would help me me a lot..
Thanks Suresh! I'm glad you found this video helpful. If you're shooting for 720+, I would recommend our comprehensive course that covers all aspect of the GMAT: www.dominatethegmat.com/video-purchase/gmat-online-test-full-course/. I'm looking forward to working with you!
It's funny, after all the months of content studying I have committed myself to, I could never figure out why I have been making the same mistakes. Strategy! I always flounder to solve because I think I can solve; I know I can solve. Your approach, one that I have been familiar with in many encounters, was expressed in a way that I can actually adopt to save time. Thank you!
Also, for the question on criteria 2, 13:00 minutes in, L=10, X=5, J=5, Y=15 shows both A or E could be correct. Readjusting the answers allowed me to confirm A.You hint at this possibility, but I figure I'd mention it.
I haven't taken the GMAT yet but I found the strategy for variables and figures most interesting. I didn't understand the WIBNI maybe because I am yet to look it up on your blogs. Hopefully it will be easy to understand and apply.
+darek459 Glad you found this video helpful! Here's a direct link to an article I wrote about WIBNI: www.dominatethegmat.com/2012/09/gmat-strategies-the-wibni-gmat-math-trick/.
Great videos thanks!!!!!!!!!!!
Making up numbers is going to help me a lot. THANKS!
The strategy that I would like to learn more about is wouldn't it be nice if....
This is do greet, thank you so much!
Mr. Ethridge, Thank you for such valuable videos. I would just like to inquire about where to find the WINBI strategy because I couldn't find it on the Blog.
You're welcome! I'm glad you're enjoying the videos. The WIBNI strategy is explained in the "Problem Solving" section of my Full GMAT Prep Course: www.dominatethegmat.com/video-purchase/full-gmat-prep-course/ . Enjoy!
Great video - especially for somebody like me who is terrified of figures on the GMAT
Glad to hear it, and glad it helped!
Thanks a lot for all the tips and Strategies .. They seem to be really helpful :)
Great Strategies and great work..
Thank you!
@dominate the GMAT - In the geometry problem how did u assume the length of the parallel line segment PQ is one third the length of the diameter. That is pure approximation. Also, even if we scale the figure and try to find the answer we are left with two very close options, which might leave us with doubt in the end. And the doubt would make us think if we did actually choose the correct approximation to begin with.
Good point, Hardik, and that's exactly what I explain in the video. It is an approximation. The "eyeball technique" isn't a foolproof way to get THE one right answer (although sometimes it is), but it's a great way to eliminate some clearly wrong answers and improve your guessing odds in the event that you don't immediately know how to do the math. In terms of how I approximated the length of PQ, I used the fact that problem solving figures are assumed to be drawn to scale, and I encouraged you to literally hold a piece of paper up to your computer screen to use the diameter of 18 as a scale key. Again, it's not an exact science, but you can get pretty darn close.
Wonderful video. Thanks a lot Brett
Thank you! The geo strategy is awesome! Please share more such offbeat strategies.
Hi Brett , it was a great idea the subject about figures , thanks for the great video
number 2, wooow! Thank they are all great, but i got to give it to you for number 2!
Glad you liked it! Yeah, it's a super helpful strategy on lots of different questions.
Eyeball & WIBNI are interesting approaches. Thank you!
Great approach, Brett. Interesting enough, but for the Sample Question: Variables Strategy (10 min 02 sec) if X=2, Y=6, Jim=2 and Lois=4, the right answer is E and not A.
Notice that with your numbers, answer choice A also works. Every once in a while, the variables you choose may result in two potential "right answers" (purely by coincidence). If that happens, simply work the problem again with a different set of variables and it will eliminate one of those answers, leaving the one true correct answer. If you follow my rules for making up numbers, this occurrence rarely happens.
I am working to improve on time management on the reading comprehension and integrated reasoning questions.
Hi Brett, these strategies are indeed amazing, and I have learned the second and the last with the diagram, they are spot on. However, I am gonna need more help on the working backwards and the wouldn't it be nice if.. strategies. I shall refer to your website just as advised.
thank you again for this video, it has been an enlightening experience for me!
Hi kirabo beatrice
All the above, but figures will help me most!! Thanks!
+David Gregory Glad it helped! Good luck on test day and don't hesitate to let me know how else I can help between now and test day.
i have to say strategy 1 and 2 is what we all learned during high school and is basically the cornerstone of solving any algebraic equations. But bc this is a gmat, I would say the last one is the most helpful as we are conditioned to solve problems by showing the work during highschool but on the gmat, the points only goes towards the right answer not the work.
If you learned strategies 1 and 2 in high school, you went to a better high school than I did! ;) Glad you liked the last strategy, and good luck!
Awesome video, Thanks for uploading. I am going to watch all of your videos, very helpful. For last question, PQ seems little bit longer than the OR, My answer would be B. I cant help but my mind says the answer should be B. Since there is no much difference between A & B but B seems more satisfying :)
Yeah, the eyeballing strategy won't always get you down to exactly one clearly right answer. Sometimes it does, but sometimes it only gets you in the ballpark. Still, in cases where you may not remember how to do the actual geometry, getting down to a 50-50 guess is a lot better than 1 out of 5.
Yes, agree, but these type of questions r the deciding ones.
I never comment on videos but this is really great! Thanks for posting your videos:)
I'm honored! I'm glad you found it helpful, and best of luck to you on test day.
There are so many comments and I tried going through the first few... but is there actually an explanation on the geometry question we were eyeballing? Trying to see if my thought process actually worked... Also, read up on WIBNI Blog... will do so again, to try and visualize it for myself as I am a visual learner. Your videos are great, thank you so much!!
My pleasure, glad you found it helpful! I teach the actual geometry for the "eyeball" question in my course, but here's a quick explanation. The key is to recognize that an inscribed angle has 1/2 the degree measure of the arc it creates. And given the rules of parallel lines cut by a transverse, that means arcs OP and QR both measure 70 degrees, leaving 40 degrees for arc PQ. So the question becomes, what does 40 degrees translate to in terms of an actual length? Well since there are 360 degrees in a circle, that means arc PQ represents 1/9 of the circumference of the circle (40/360). The circumference of the circle is 18pi (we're told the diameter is 18, so the radius is 9), so the arc is 1/9 of 18pi, or 2pi.
Hi Brett! Thanks for the videos! Very helpful for myself and I am sure many others. I wish to apply to Ontario based business schools that do not mention on their websites that they consider the essay or integrated reasoning. Should I almost completely skip these sections to help prevent mental fatigue?
I wouldn't advise "almost completely" skipping those sections, no. Whereas a lot of schools don't but much attention on the essay or IR, they do see it as a red flag if your essay and IR scores are disproportionately worse than your main GMAT score. I imagine that would apply to your Ontario schools. If you get a 650 on the main part of the GMAT but a 1 or 2 on the essay and IR sections, it could be a problem for you. Whereas you don't need to over-tax yourself and try to get a 6 or 8 respectively, I would suggest at least making some effort on those sections. Prepare for the extra "mental fatigue" when you take your practice tests and you should be fine.
I struggle with the working backwards problem. I found that working algebraically for the mixture problems suits me better. May be I am not using the working backward strategy efficiently or it may not yet be brain-wired into me. Please comment. Been studying for gmat for more than 3 months.
Also, I love mike from magoosh for his delivery style and the humble nature. Now, I am your great fan as well.
Awesome! Yeah, mixture problems are perfect candidates for working backwards, but so are a large number of other common GMAT words problems as well as numerous algebra and arithmetic problems. You might want to check out our a-la-carte lesson on non-standard math strategies, as there's a worksheet with it that will give you additional practice applying the strategies: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-strategies-non-traditional-math-techniques/. And yeah, Mike is great. I met him at the AIGAC conference in Virginia last year. Good luck to you and let me know how else I can help!
Awesome Video Brett, I really got confidence on seeing your video.
As I am reaching towards my GMAT exam Date.
I am struggling in RC's and Verbal Questions. Please help me, so that How would I approach towards these questions keeping Time management in mind.
Awesome! Glad you liked the video. Here's my lesson on RC's: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-reading-comprehension/. I think it'll really help you. And then I have lessons on all the other verbal topics as well: www.dominatethegmat.com/video-purchase/a-la-carte-topics/#GMATVerbal. Enjoy!
Thank you so much for this video. I would like to access more strategies. Please help me. I will be attempting the test for first time.
Great Nitipriya! I'm glad you found this video helpful. You can find more strategies in my courses here: www.dominatetestprep.com/store?tag=gmat. You can also follow my social media channels and subscribe to this UA-cam channel so that you're alerted whenever I upload new videos. Enjoy!
The most helpful, I think, will be the variable strategy. I like numbers and I'm more comfortable working with them. The most challenging will likely be the really hard strategy-WIBNI. Great video, very encouraging. I am concerned that when I sit down and start the timed test (regardless of practice or real test) that I am going to freeze up and experience blank thoughts...
Familiarity and practice help, Patricia. It's like a basketball player who finds himself at the foul line with the game on the line. Is there pressure? Sure. But he's shot 10,000 foul shots in his life, so his muscle memory just sort of takes over. Keep that in mind.
thank you. I'll check it out.
I'm most concerned about timing as timing has always been a struggle of mine in standardized test. I'm also concerned about verbal section as I am usually weak in that especially reading comprehension
+Vignesh Arasu I have quite a few articles and free videos to help you with the time management side of the GMAT. You can see them here: www.dominatethegmat.com/?s=time+management&x=0&y=0. In terms of reading comprehension, I teach that in detail here: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-reading-comprehension/. Hope this helps and good luck!
I think for me the most helpful will be the figures and making numbers up. I tried watching the video on the website, but the link is broken
You're the second person who has said that recently about the video not working on my website. Would you mind providing the link you're talking about so that I can look into it? And what e-mail address is your account with my website tied to? I'll look into it for you. Thanks!
This was very helpful, but for the figures I often have trouble trusting them too much. For example in the final question, I took a screenshot and mapped the smaller, parallel line to the diameter and it came out to much closer to half of the diameter than 1/3 (which would be = 6). So I'm wondering at what point do we take a different route to try to get a more exact answer? I understand that it's time permitting, it's just frustrating because if you solve for the minor arc using (40/180) = (x/9pi), the answer does come out to the low 6.something, which is the answer you got to assuming the smaller line was about a third of the diameter. Any suggestions on when to try to solve this out rather than take the 50/50 guess?
The "eyeballing" strategy is no longer as relevant since the new version of the GMAT (formerly called the GMAT Focus Edition, now just called the GMAT Exam) no longer contains geometry. Just focus on Working Backwards, Making Up Numbers, and WIBNI! There are a couple other useful strategies that we discuss in our complete GMAT Prep Course, fully updated for the latest edition of the exam: www.dominatetestprep.com/gmat-focus. Hope this helps!
Thanks for the videos, they are very helpful. I want to write the GMAT in June and I am just getting started. Do you advice I go ahead?
Glad you've been finding them helpful! I know you'll find my full course even more so :) Do you mean that you're planning on taking the GMAT 11 months from now? If so, my advice would be not to drag the process out that long. Most people only need 2-3 months (~80-100 hours) to fully prepare for the GMAT from scratch. If you have the time to start studying for it now, then definitely do so. Track your practice test scores and make sure you're progressing as desired, but then go ahead and pull the trigger on taking the real thing as soon as you're ready --
possibly as early as September or October. Your score is good for 5 years, so you might as well get it out of the way! (In terms of other advice, balance your studying across the "Success Triad" principles I discussed in Part 1; my course will provide you with the ideal game plan, teach you all of the most important content and strategies, and give you tons of practice). Good luck!
I love your videos and would like to learn more about strategy 1
Glad you liked it! I address Strategy #1 in more detail in my Free Session, which you can sign up for here: www.dominatethegmat.com/gmat-free-session/.
hello,
2nd strategy was really good nd help ful . the last one was not that help ful as we can't consider the length directly in that way but still it may help some times as some thing better then nothing.thank you for the good strategies.
Strategy for diagram is really amazing but I don't know how moving backwards strategy works
Do you have a course that I can take for Data Sufficiency questions in general, and not specific areas of math? My math is strong, and I don't have any problems with Problem Solving questions. But DS questions completely throw me off and I miss small details.
Got a 42 in Q on my first attempt yesterday, really want to improve on that and I know most of the ones I got wrong were most likely DS questions..
Wonderful video.
I do really need your help beating GMAT. It is the first time I take official test,and I am not confident enough.
I'll be happy to help you! Have you taken any full-length practice tests yet? Are you looking to take a course or get private tutoring? Let me know!
I just knew about the GMAT five days ago when I applied for MBA . I did not take any tests or course. They asked me to get at least 400 to be admitted. Help me to reach this goal by any means.
Hi Bret, I am fresh and currently starting my preparation for GMAT exams, my math is poor.
Geometry give me a pretty hard time
That's totally normal, and the good news is that all of the math tested on the GMAT can be learned (or re-learned) in a fairly short amount of time. We have a complete math review in our GMAT Quant Course: www.dominatethegmat.com/gmat-math-course/. Some geometry concepts are tested more than others (e.g. right triangles) so don't get lost in the weeds!
Thank you for the videos, but no need to estimate on this one: Since the alternate interior angles are the same, the other arc on the top right is also 70 degrees. The bottom is a semi circle, so it is 180 degrees. Subtract 70 and 70 and 180 from 360 (a full circle) and you are left with 40 degrees. 40/360 is 1/9. The diameter of the full circle is pi times D, or 18pi. So 1/9 of 18pi is 2pi (sorry i don't have the pi symbol).
You're absolutely right about the mathematical solution, but the point with this video is that sometimes you may not know how to do the math, and you need a strategy to still get a right answer. If you know the math, go for it! But even if not, I still want you to be able to get right answers :) That's what dominating the GMAT is all about!
Variables and geometry strategies are very useful..
Hey Brett, would you be able to go over Integrated Reasoning problem, please?
I do cover a sample IR problem in another video on this UA-cam channel, so browse for that. Also, here's an article I wrote for the accepted.com blog with three tips for dominating Integrated Reasoning on the GMAT: blog.accepted.com/3-keys-to-dominating-gmat-integrated-reasoning/. Hope it helps!
Hi, Brett!
You are a magician!
Your video about strategies is amazing!
Especially I liked making up numbers and WIBNI! I read an article about WIBNI on your website and I think that this principle has a much wider application to life than just beating the GMAT :)
I not really liked the example of eyeballing because to me PQ is a little bit less than a half of OR and I even measured it on my screen with a ruler to check myself, so on my screen PQ is 2cm and OR is 4,4 cm so by using this strategy I would more likely choose E as an answer, that's why I would chose some different example for the demonstration of this strategy. Just wanted to let you know, because I am very grateful for your videos and I like them a lot and would be glad if my advice would help you somehow to make them even better. :)
Thanks Anna! I'm glad you liked the strategies -- and yes, WIBNI is a great tool for life as well :) Thanks for your feedback on the eyeballing example. Best of luck to you and let me know how else I can help!
very nice! thank you!
Bro, regarding that make up numbers strategy, if we assume x as 3, and assume lois has 6 dollars and jim has 3 dollars, the total comes to 9 which is y.
Here, we have two choices which gives us the answer.
a. y-x/2 i.e 9-6/2 equals 3, which is what jim has
and option
b. y-2x i.e 9-2*3 equals 3 which is also the same no. of dollars which jim has.
how do we zero in on the correct answer ?
Occasionally that happens, but very rarely -- especially if you avoid 0, 1, and numbers already in the problem when choosing your numbers. That said, if it does, just choose a second set of numbers, work the problem again, and check them against the two answer choices that are still in the running. One of them will emerge as the winner (i.e. the answer choice that the new numbers also work for).
Thank you for the clarification. I appreciate it.
2nd strategy is good but fails sometimes may b i am making some mistakes but overall i really liked these stategies. thank u
Glad to hear it! Yeah, it takes a little practice until these strategies become second-nature. Stick with it! And whenever you're ready to dive even deeper into the other content areas and strategies that will help you dominate the GMAT, you can sign up for one of our comprehensive courses here: www.dominatethegmat.com/video-purchase/. Let me know how else I can help!
thank you... very helpfull..
This is excellent!
Hello Brett!
Prospective student for Wake Forest!
Take my test March 7th and need about a 650 average!
But I wanna shoot higher!!
If I am starting fresh with studying! Do I have enough time and how many hours a day that looks like?
Not sure I can help out a prospective Demon Deacon, being a Blue Devil myself... ;) Just kidding! Send me an e-mail at brett@dominatethegmat.com and I'll send you my thoughts!
how did you do on the GMAT?
The first strategy, developing that Pavlovian response :)
I cannot access your WIBNI video because of its format could you please upload it on youtube
Thank you.
You can get more on WIBNI in my comprehensive GMAT quant course, but in the meantime, here's a pretty thorough article I wrote about the concept, with examples: www.dominatethegmat.com/2012/09/gmat-strategies-the-wibni-gmat-math-trick/
The work backwards was the most helpful but I am unsure and didn't quite understand the Figures/P.S D.S and how to use the eyeball or draw strategy?
+MzlovingMe Edwards Check out that other link I posted for you and choose one of our Full Courses. It's all explained in great detail in the more comprehensive video lessons!
Thank-you for the video, I really like it, but unfortunately I fall under category 3 and I know a lot of these strategy before even watching this video, What I am concerned about is the verbal part of gmat, I am really very weak in that, could you please upload some of the videos which help me in that...
+Aditya Bajpai Go ahead and search my channel for all videos -- I have uploaded several good videos with important GMAT verbal strategies, especially for CR and SC. Additionally, it sounds like the best thing for you would actually be to take my comprehensive GMAT Verbal Course where I teach all of the requisite verbal content and strategies in detail. You can learn more and register here: www.dominatethegmat.com/video-purchase/full-verbal-section/
Helpful = Make up #s
Opportunity for improvement = timing.
approaching the figure based question the way u did. isnt that a lil assumptive? is that the correct way to solve such ques?
+Mokshada Pande You can certainly "solve" the question the traditional mathematical way. But my point in this video is, what happens if you don't know how or if you forget the formulas or whatever? Your goal is still to get a right answer. This strategy helps you get a right answer at all costs. And it's not assumptive at all if you know the figure is drawn to scale. Why not rule out obvious wrong answers just by eyeballing the figure? It helps you get to the right answer, and that's ultimately what you're trying to do. Remember, the GMAT is a means to an end. Sometimes you have to treat it that way!
Thank you for the reply sir :) i will keep the approach steady in my mind :)
For exclusion strategy do it work all the time as the choices may be so close in amounts
You'd be surprised at how infrequently the answer choices are all so close that only a careful calculation will yield the right answer. But "no," the exclusion strategy doesn't work all the time. Sometimes it's only helpful in eliminating two or three clearly wrong answers, which is still a great outcome and at worst improves your guessing odds!
Hi Brett!
can you tell me wich is the answer at the first example?
+Erhan Maria You mean Jason and his washer fluid? The correct answer is D, 30 ounces.
Hi, How would you solve the arc question using a mathematical process ?
I'll give you a hint: It starts by recognizing that an inscribed angle has a degree measure that's 1/2 the arc it creates. So, arc OP is 70 degrees. You can also then recognize that angle QPR is also 35 degrees since PQ and OR are parallel. That makes arc QR 70 degrees as well. See if that helps. BTW, this problem is solved mathematically in my circles video lesson that you can get here: www.dominatethegmat.com/video-purchase/a-la-carte-topics/gmat-geometry-circles/
thanks u helpd me a lot ...sir
Great strategies. However, I think that line was just under half of 18. I'd have to lean towards B on that one.
At least the strategy would have gotten you to a 50/50 guess in that case...better learn how to do the actual geometry, then! ;)