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  1. A train 50 m long passes a platform 100 m long in 10 seconds. The speed of the train in m/sec is ?
    1. 150
    2. 50
    3. 10
    4. 15
Correct Option: D

Speed of train = distance covered / time.
= (50 + 100) / 10
= 15 m/sec.


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