A train is 360 meter long is running at a speed of 45 km/hour. In what time will it pass a bridge of 140 meter length.
20 seconds
30 seconds
40 seconds
50 seconds
Correct Answer : C.
Speed = 45 Km/hr = 45*(5/18) m/sec
= 25/2 m/sec
Total distance = 360+140 = 500 meter
Time = Distance/speed
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