Question

a man sitting in a train traveling at a speed of 30 km/h notes that a train going in the opposite direction crosses homing seconds.if the lenth of these trains is 200 m the speed of the other train will be

Answer 1

Answer:

Rate of the travelling goods train = 50km/hr (Given)

Time taken by the goods train to travel opposite = 9sec (Given)

Length of the goods train = 187.5cm (Given)

Let the speed of the goods train be = x km/hr

Then, the relative speed = 187.5/9

Thus, using the equation -

(50+x) × (5/18) = 187.5/9

On solving -

= x = 25 km/hr

Hence, the speed of the train is 25 km/hr