A train runs at a speed of 80km/hr. If the length of the train is 400 m, how long will it take for it to cross an 400m bridge? 

Obstacles mean-

The ratio of length of two trains is 4 : 3 and the ratio of their speed is 6 : 11. The ratio of time taken by them to cross a pole is?

A moving train crosses a man standing on a platform and a bridge 640 metres long in 15 seconds and 35 seconds respectively. What will be the time taken by the train to cross a platform 1280 meters long?

A 240 meter long train crosses a 300 meter long platform in 27 seconds. What is the speed of the train in Kmph?

A train is 125 m long. If the train takes 30 seconds to cross a tree by the railway line, then the speed of the train is:

A train running at a speed of 108 km / h crosses a pillar in 32 seconds. The length of the train (in meters) is:

Direction: In the following question, out of the four alternatives, choose the one which can be substituted for the given sentence.

A student of colleage.