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  1. A train 50 meters long passes a platform 100 m long in 10 second. The speed of the train is ?
    1. 10 km/hr
    2. 15 km/hr
    3. 54 km/hr
    4. 100 km/hr
Correct Option: C

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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