Question

A man is running at a speed of 20 m/s in the same direction as a train. The train passes the man completely in 9 seconds. If the train's speed is 144 km/h, determine the time it will take for the train to cross a bridge that is 120 meters long.

A 1.2 secs
B 5.3 sec
C 2.5 secs
D 7.5 secs
E None of these
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