Question

Train a completely crosses train b which is 205 m long in 16 second. if they are travelling in opposite direction and sum of speed of both are 25 m/s. then find the difference (in meter) between lengths of both trains.

Answer 1

Let the length of the train A be x

Now,

Displacement = Velocity × Time

'Relative velocity = 25 m/sec

Time = 16 sec

So,

205 +x = 25×16

x = 400 -205

x=195

So,

The length of the train is 195 m

Difference between the length of the train = 205 -195

=10 m

Hope this helps !!!!!