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A man starts his walking at 3PM from point A, he walks at the rate of 4km/hr in plains and 3km/hr in hills to reach the point B. During his return journey he walks at the rate of 6km/hr in hills and 4km/hr in plains and reaches the point A at 9PM.What is
Ashish talpade

A man starts his walking at 3PM from point A, he walks at the rate of 4km/hr in plains and 3km/hr in hills to reach the point B. During his return journey he walks at the rate of 6km/hr in hills and 4km/hr in plains and reaches the point A at 9PM.What is

10-Feb-2016 | Ashish talpade |

A man starts his walking at 3PM from point A, he walks at the rate of 4km/hr in plains and 3km/hr in hills to reach the point B. During his return journey he walks at the rate of 6km/hr in hills and 4km/hr in plains and reaches the point A at 9PM.What is the distance between A and B?

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sandeep pandey
24-Nov-2016

sandeep pandey

ANS- ITS ANSWER IS 12

LET  T1  BE THE TIME FOR FORWARD JOURNEY

T2 BE THE TIME FOR RETURN JOURNEY

D1+D2=FORWARD/RETURN DISTANCE

D1 BE THE DISTANCE IN PLANE

D2 BE THE DISTANCE IN HILL

D1/4+D2/3=T1  (FORWARD TIME)

D1/4+D2/6=T2 (RETURN TIME)

ADDING D1 &D2  WE GET 12

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