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  1. A train 300 meters long passes a standing man is 15 seconds. The speed of the train is ?
    1. 40 km/hr
    2. 50 km/hr
    3. 60 km/hr
    4. 72 km/hr
Correct Option: D

∴ Speed = Distance / Time = (300/15)
= 20 m/sec
= (20 x 18) / 5 = 72 km/hr


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