last question speed : 8/5 time will be :5/8 difference time 60 min which means 8-5 unit : 3 unit 3unit :60 1 unit : 20 initial unit 8 : 160 min. answer earlier i watched your ratio video thats why it became easier for me , thank you sir
Had the question been "...reached in 60 minutes" rather than "60 minutes earlier", 3/8 of x can be equated to 60. Since it's the latter, 5/8 of x should be equated to 60, right? 5/8 being the time saved by reaching 60 mins earlier. And hence, the x would come out to be 96.
@@Changinglives2000 sir i think summary guy is right because lets say 5/5 speed =x time if speed speed is 8/5 time so time will become 5x/8 times and time which decrease in that time train will reached in 60 minutes so 5x/8 =60 if i wrong please tell me the concept ??
HERE IS A FUN EXERCISE ON THE CONCEPT UISNG THE VIDEO ITSELF: the time take to complete the video is 22 mins and 16 seconds. Now, the playback speed is 1.25 instead of 1. Calculate the decrease in time taken to watch the video.... :)
SIR please upload more videos of time and work pls sir no one else is providing such simple methods 💯 please sir start your own website so that we can buy your course because in unacademy there is no systematic way like we have here (i.e playlist).
Given that time is decreased by 60 minutes. We've calculated that if speed is increased by 3/5, time will decrease by 3/8. And actually, that decrease is equal to 60 minutes. So, 3/8*(x) = 60 minutes => x = 60*8/3=> 160 minutes.
I followed your formula but couldn't match the answer here😢 1) While covering the distance of 540 km, if the speed of Car is increased by 3 kmph then it takes 2 hours less to cover the same distance then find the new speed of the car? a) 30 kmph b) 40 kmph c) 50 kmph
Can you please help me in this...im confused as when to simply reciprocal the speed to time and when to use n/d+n.... because previous question we used reciprocal of 4/5 and in the last question we did 8/5 -1
@@aerikakaushal there's a difference between those two cases. In your first doubt case, final speed was given instead of increase in speed. (5/4)S was the final speed. Increase = (1/4) ==> Decrease is going to be (1/5) This is also consistent with the decrease in time taken from t to (4/5)t. Since Distance is constant ==> S*T = Constant. (5/4*T)*(new-time) = S*T new-time = (4/5)T.
This channel is not sufficient to cover up the whole concepts , if someone is preparing through his videos then he/she must exercise more efforts or more diversified questions of cat Please go through the previous years paper too
last question
speed : 8/5
time will be :5/8
difference time 60 min which means 8-5 unit : 3 unit
3unit :60
1 unit : 20
initial unit 8 : 160 min. answer
earlier i watched your ratio video thats why it became easier for me , thank you sir
how 8-5 come here pls explain this?
Preparing without Coaching. Thanks Rodha Sir. Lets build a communuity of CAT With Self-Study
Finding your channel is one of the best things that happened to me this year 🙏✨
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anyone here , who's preparing for cat 2022 without any coaching and just watching Rodha videos?
Hi, Yes
@@ananya5581 me also
Same here
Yeh sufficient h kya
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It's grateful to found this Channel, in all honesty, after watching your videos questions made easy. Thank you for giving us such premium content.
I always found time and distance difficult until I found this channel.
You’d still find it difficult girl
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Percentile?😂
@@Endever10
96
@@Endever10 97 percentile h
Best channel for CAT
Yes ....!!
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The best sir I ever seen
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same
Had the question been "...reached in 60 minutes" rather than "60 minutes earlier", 3/8 of x can be equated to 60. Since it's the latter, 5/8 of x should be equated to 60, right? 5/8 being the time saved by reaching 60 mins earlier. And hence, the x would come out to be 96.
Can someone please point out where I'm wrong (if I'm wrong)?
yeah you are wrong, if you are doing 5/8x then you should equate it with x-60,
though you will get the same equation that sir wrote
@@Changinglives2000 its 5x/8
@@Changinglives2000 sir i think summary guy is right because lets say 5/5 speed =x time if speed speed is 8/5 time so time will become 5x/8 times and time which decrease in that time train will reached in 60 minutes so 5x/8 =60 if i wrong please tell me the concept ??
You are just wonderful, the way you explain each n every single point is appreciable. Thank you so much sir. ❤
HERE IS A FUN EXERCISE ON THE CONCEPT UISNG THE VIDEO ITSELF: the time take to complete the video is 22 mins and 16 seconds. Now, the playback speed is 1.25 instead of 1. Calculate the decrease in time taken to watch the video.... :)
1068.8
Approximately 17.8minutes
@@rayzoldyck8044can you please elaborate
@@mohammadshadab1940 can you please elaborate
Nice question.answer would be decrease of 4 min and 27.2 second which would make the duration of watch time 17 minutes and 48.8 second.
Sir you are very great . You are providing such a clear explanation of all topics free of cost. Thank you sir. It helps us a lot.
ua-cam.com/video/zhHTZYaWDjk/v-deo.html
Is this worth watching have you got any iim ?
Thnku sir ...Best teacher ever 🙏
ua-cam.com/video/zhHTZYaWDjk/v-deo.html
RODHA ❤+ UNACADEMY free videos💯
Truly impressed by your way of teaching n explanation...Huge respect for you sir...
SIR please upload more videos of time and work pls sir no one else is providing such simple methods 💯 please sir start your own website so that we can buy your course because in unacademy there is no systematic way like we have here (i.e playlist).
Time is now 3/8 less right? So if time is 3/8 less then equation should be 5/8*x=60(using multiplication factor)? Please anyone clear my doubt!
Given that time is decreased by 60 minutes. We've calculated that if speed is increased by 3/5, time will decrease by 3/8. And actually, that decrease is equal to 60 minutes. So, 3/8*(x) = 60 minutes => x = 60*8/3=> 160 minutes.
Thanks!
(Finally someone cleared my doubt after 1 month 😂)
@@gorangvishnoi7657 anytime. 😂😂 if ever crossed.
@@supriyayadav9367 My doubt still remains the same.
@@shivanijethliya263 yes as i am thinking it should be 3/8 of x = x-60
Respected sir,You r and amazing teacher....best concept videos bt sir please provide more free questions every topic wise.
Any one here preparing for CAT 2024?
Yup.., me
Yes!
Yes
Yess
Yessss
So the 160 min found would be the orginial time taken and hence the train now reaches in 100 min?
yup
thanks for explanation i had the same doubt.
yes bro 😊
sir why didnot you cover Pipe and cisterns topic in arthematic
Complete on
10th Sept 2024
great work brother
Sir ur video has really helped me a lot to sit in cat exam 2024
After watching videos how are practicing cat level qns ?
Thank you Ravi sir and Rodha.
Where do we find missing lectures from this playlist?
Very good concepts and a good initiative.....
sir 8/7-1= 1/7 hain apne shayd 1/8 bola sir .
Yes
Sir pls suggest after watching these all videos what material or books we have to solve to ace cat in 2023 and are these videos sufficient?❤
Go with Arun Sharma
Sir u r wow ❤
namaskar mahra
Thanku so much sir. It's commendable
Can someone tell me why it's n/d and n/d+ n?
Watch sir's videos on percentages.
You will have the proof in one of those
Thank you very much Sir 🙏
I followed your formula but couldn't match the answer here😢
1) While covering the distance of 540 km, if the speed
of Car is increased by 3 kmph then it takes 2 hours
less to cover the same distance then find the new
speed of the car?
a) 30 kmph
b) 40 kmph
c) 50 kmph
Is the answer is 30kmph?
answer should be 27 km/h
Anyone’s prepping up for CAT’23?
Yes here I am I just started week ago
Haa group banana hai?
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Me
Which books should we use
UPSC walon attandance lagao
Sir is Matthews.
Now I can't unsee it😂
n/d and n/d+n are the only formulas for me
Can you please help me in this...im confused as when to simply reciprocal the speed to time and when to use n/d+n.... because previous question we used reciprocal of 4/5 and in the last question we did 8/5 -1
@@aerikakaushal hey, I am also preparing.. can we connect?
@@aerikakaushal there's a difference between those two cases.
In your first doubt case, final speed was given instead of increase in speed.
(5/4)S was the final speed.
Increase = (1/4) ==> Decrease is going to be (1/5)
This is also consistent with the decrease in time taken from t to (4/5)t.
Since Distance is constant ==> S*T = Constant.
(5/4*T)*(new-time) = S*T
new-time = (4/5)T.
Sir you ROCK
but isn't S & T increase or decrease by same proportion?
If S is increasing by 20%, time should decrease by 20% right
Distance should be constant otherwise it is not valid
Only one problem. Volume is low.
Sir you do magic!
Thank you Sir
Sir app God ho!!!!!!!
sound is too low can't hear without headphone
can i get pdf
right
anyone here preparing for cat 23
me
Your explanation good sir
Thankyou,sir.
Thank you. 🙏
Anyone prep for cat 2023?
yes started preparing in september
@@klrah6291 can we connect?
Yess
How is 8/7-1 = 1/8?
Tongue of Slip
@@malayswarnkar2261 Slip of tongue
@@malayswarnkar2261 Slip of tongue*
Ha me bhi bina coching ke kar rha hu cat 2022
Kya hua bro, worth tha bina coaching k ? Nikla cat ?
This channel is not sufficient to cover up the whole concepts , if someone is preparing through his videos then he/she must exercise more efforts or more diversified questions of cat
Please go through the previous years paper too
Clearing basic concepts from these videos and then solving higher level questions from Quantum CAT.
Videos are helping a lot.
@@super_mohit_0099 bro is quantum cat a good book?
@@legendaryquotes964 Yes, it is one of the best book for Quant section.
❤️🔥❤️🔥
CAT 2023 ?
45 days me hain :P
Thankyou sir
thanks
Can anyone HELP me when to use MF?
cat 2023 people... Group chat?
Where
Sir we can simply do it by ratios
What is the need to remember such formulas
❤
Someone doing for 2026
24..
2025
hindi matra bhasha
Concept ko koi complicated banana koi inse sikhe😂😂😂😂
Multiple methods se thinking process develop Hota Hai, confusion ni
Thankyou sir
❤
Thankyou sir
Thank you sir