A person standing on a railway platform noticed that a train took 21 seconds to completely pass through the platform which was 84 m long and it took 9 seconds in passing him. Find the speed of the train in km/hr.

A train 210m long took 12 seconds to pass a 90m long tunnel.Find the speed of the train.

A train 156 m long passes a telegraph pole in 13 seconds find the speed of the train in km/hr.

A man standing on a railway platform noteced that a train took 21 secods to cross the platform (this means the time elpsed from the moment the engine enthers the the platform till the last compartment leaves the platform ) which is 88 meters long and that it took 9 seconds to pass him ,ASsuming that the train was moving with unform speed , what is the langth of the train in meters ?

A coolie standing on a railway platform observes that a train going in one direction takes 4 seconds to pass him. Another train of same length going in opposite direction takes 5 seconds to pass him. The time taken (in seconds) by the two trains to cross each other will be :

A train 100 m long passes a platform 100 m long is 10 seconds. The speed of the train is