A man is standing on a bridge which is 120 m long. He finds that a train crosses the bridge in 10 seconds but it crosses him in 4 seconds. Find the speed of the train in km/h.

A man is standing on a bridge which is 120 m long. He finds that a tra

1.	A man is standing on a bridge which is 120 m long. He finds that a train crosses the bridge in 10 seconds but it crosses him in 4 seconds. Find the speed of the train in km/h.
A.	72 km/h
B.	80 km/h
C.	70 km/h
D.	90 km/h
Answer» B. 80 km/h

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A man is standing on a bridge which is 120 m long. He finds that a train crosses the bridge in 10 seconds but it crosses him in 4 seconds. Find the speed of the train in km/h.

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