A takes a 3 hours more than B to walk 30 km.But if A doubles his speed,he is ahead of B by 1 half hours.Find their speed of walking.

Asked by Arun Deepak Tirkey | 7th May, 2012, 07:47: PM

Expert Answer:

Let their speeds be x , y

So , x(t + 3)= 30 = yt

Also , 2x(t-1) = 30 = yt

on solving we get x = 3.75 km/h , y = 6 km/h

Answered by  | 8th May, 2012, 06:41: AM

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