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A train 50 meters long passes a platform 100 m long in 10 second. The speed of the train is?

10 km/hr
15 km/hr
54 km/hr
100 km/hr

Correct Answer: 54 km/hr

Explanation:

Distance covered by train in 10 sec = (50 + 100) = 150 m
∴ Speed = 150/10 m/sec = 15 x (18/5) = 54 km/hr

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