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? 

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:

The speed of two trains are in the ratio of 3:4. They are going in opposite directions along parallel tracks. If each takes 3 seconds to cross a telegraph post, find the time taken by the trains to cross each other completely?

Two train of length 100 meter and 80 meter respectively run on parallel lines of rails. When running in the same direction the faster train passed the slower one in 18 second, but when they are running in opposite directions with the same speed as earlier, they pass each other  in 9 seconds. Find the speed of each train.