Question

Train traveling at 100 kmph overtakes a motorbike traveling at 64 kmph in 40 seconds. What is the length of the train in meters?

Answer 1

it should be the required answer

Answer 2

The train is moving with velocity = 100 km/hr

And the motorbike is moving with velocity= 64 km/hr

Relative velocity of the train w.r to bike is = (100-64)= 36 km/hr

The train cross the motor bike in 40/ 3600 =1/90 hr.

So length of the train is s= v.t= 36×(1/90)= 0.4 km.