Question

A takes 3 hour more than B to complete 30km.But if A doubles his pace, he is ahead of B by 3/2 hours. Find their speed of walking ​

Answer 1

Step-by-step explanation:

D= 30 km

let x b time taken by B

Speed of B = 30 /x ; speed of A : 30/[x+3]  { A take 3 hours More}

A:B = x/{x+3}  ----------- Eq 1

Also A doubled its  Then  Speed A = 30/x-3.5  , B is same

2A:B = x/[x-3.5] -- eq 2

Solving For x  Eq1 & 2  We get x=6 --->> B = 5kmph , A=10/3

Ratio of A:b = 2:3

HOPE IT HELPS YOU .