[" A "120" m long train is moving in a direction with speed "],[20m/s" .A train "B" moving with "30m/s" in the opposite "],[" direction and "130m" long crosses the first train in a time "]

A 120 m long train is moving in a direction with speed 20 m/s . A traing B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

One train A 100m long is moving in a direction with a speed of 20m/s . Another train B 150m long is moving with a speed of 30m/s in the opposite direction.The train B crosses the train A in a time A) 5s B) 10s C) 18s D) None of these

A 130 m long train is moving in a direction with speed 20 ms^-1 . Another train moving with 30ms^-1 and 120 m long crosses the first train in a time

Train A 120 m long is moving with 20 m/s. Train B 130 m long is moving with 30 m/s in opposite direction. In what time, train B will cross train A?

A 200 m long train passes a pole in 20s. What is the speed of the train (in m/s)?

A train 350 m long is moving at the speed of 20 km/h it will cross a man coming from the opposite direction at the speed of 1 km/h in: