A 100 m long train crosses a man travelling at `5 kmh^(-1)` , in opposite direction, in `7.2 s` then the velocity of train is

A 175 m long train crosses a man walking at a speed of 9 km/h in the opposite direction in 10 sec The speed of the train (in km/h) is:

A 175 m long train crosses a man walking at a speed of 9 km/h in the opposite direction in 10 sec. The speed of the train (in km/h) is :

A train 150 metres long crosses a man walking at a speed of 6 km/hr, in the opposite direction in 6 seconds. The speed of the train is:

A train 150 meter long crosses a man walking at aspeed of 6kmph in the opposite direction in 6 seconds.The speed of the train (in kmph) is :

A train crosses a man coming from the opposite direction in 7.5 sec.if the speed of man be 10m/s and speed of train is 20 m/s find the length of the train.

A train 240m long crosses a man walking along the line in opposite direction at the rate of 3km/h in 10 seconds.The speed of the train is