formula for work, time, distance in case of Train problems is wrong! Opposite direction the speeds get added, but in the formulae it is written as S-s.
You're right! There is a typo in the slide. However, if you pay heed to the explanation from 00:25:36 to 00:26:36, the concept/formula has been correctly explained and rewritten. Please let us know if you need any further clarification!
For the work time speed and distance part 2 question, why are you doing S1-S2 even if the train is moving in the same direction whereas in formula it is written that if it is in same direction, it is S1+S2
There is a typo in the slide. However, if you pay heed to the explanation from 00:25:36 to 00:26:36, the concept/formula has been correctly explained and rewritten. Please let us know if you need any further clarification!
For the first question, Virat scored 14x runs in August and 5x runs before that. So the increase would not be 9x/5x? Since we will take change/intial value for percentage increase?
Hi, Had the question specified "find the percentage change in the runs scored by Virat in August to that before August" you would have been right. But since the question doesn't specify we need to find the percentage change in Virat's total runs after August to that of before August. Therefore change in total runs will be 14 x and the runs before August is 5x thus making the answer 14/5,
@@gmatpoint No...If it was asked what percentage of runs scored till august is the runs scored in august, then it is 14/5. The question clearly asks percentage increase.
@@gmatpoint Hi, need a clarification on this....does this mean, the question asked is about "percentage increase in runs'? hence the formula is like (increase /initial)*100 %?
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1:40 = Percentage Change
2:00 = Successive Change = 2 times change in percent
4:02 = Successive Discount
Is this the same syllabus for GMAT focus edition?
This video will be very useful for GMAT candidates
Thank you so much for continuously providing quality content for GMAT aspirants.
You're welcome
Thanks for the video sie. will be helpful for everyone who are preparing for GMAT exam.
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Such a useful video! Thank you!
Quadratic equation formulae can also be added in this.
sure, we will try to add it in new video.
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Very useful video👍
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formula for work, time, distance in case of Train problems is wrong! Opposite direction the speeds get added, but in the formulae it is written as S-s.
@gmatpoint waiting for answer
You're right! There is a typo in the slide. However, if you pay heed to the explanation from 00:25:36 to 00:26:36, the concept/formula has been correctly explained and rewritten. Please let us know if you need any further clarification!
Thank you
You are welcome.
For the work time speed and distance part 2 question, why are you doing S1-S2 even if the train is moving in the same direction whereas in formula it is written that if it is in same direction, it is S1+S2
There is a typo in the slide. However, if you pay heed to the explanation from 00:25:36 to 00:26:36, the concept/formula has been correctly explained and rewritten. Please let us know if you need any further clarification!
For the first question, Virat scored 14x runs in August and 5x runs before that. So the increase would not be 9x/5x? Since we will take change/intial value for percentage increase?
Hi, Had the question specified "find the percentage change in the runs scored by Virat in August to that before August" you would have been right. But since the question doesn't specify we need to find the percentage change in Virat's total runs after August to that of before August. Therefore change in total runs will be 14 x and the runs before August is 5x thus making the answer 14/5,
@@gmatpoint No...If it was asked what percentage of runs scored till august is the runs scored in august, then it is 14/5. The question clearly asks percentage increase.
@@gmatpoint Hi, need a clarification on this....does this mean, the question asked is about "percentage increase in runs'? hence the formula is like (increase /initial)*100 %?
I think the exact same. The question says % increase, so why have we calculated only August month's runs?
IS THIS FULL LIST OF FORMULAS FOR GMAT QUANT?
Yes, You can also download complete GMAT quant formulas here: gmatpoint.com/gmat-math-formulas-pdf