IBPS Clerk Prelims Model Paper 9

Given: Both of them are travelling the same distance.
Therefore, speed will be inversely proportional to time.
⇒ A and B respectively will take 3x minutes and 2x minutes to cover the same distance.
Also, 3x – 2x = 10
⇒ x = 10
⇒ A will take 30 minutes to cover the distance.
If A doubles his speed, then he would have covered the same distance in 15 minutes.