AFCAT II 2020 Solved Paper

let the speed of Ashok and Raj are x kmph and y kmph. If Ashok start one hour earlier and Raj can catch him in two hours. Then,

Distance travelled by Ashok in 3hr. = Distance travelled by Raj in 2hr.

3x=2y...(i)

But Ashok increased his speed as Raj speed and takes 5hr. to complete the distance of 42km

So, 42=5y⇒y=8.4kmph

And x=‌

2

3

y=5.6kmph

If Raj reduced his speed as Ashok's speed, then time taken by him =‌

42

5.6

=7.5hr.

So time difference =7.5−5=2.5hr.