A train 100 m long passes a boy, running at 3 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:

A train 100 m long passes a boy, running at 3 km/hr in the same direct

1.	A train 100 m long passes a boy, running at 3 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:
A.	36 km/hr
B.	39 km/hr
C.	42 km/hr
D.	45 km/hr
Answer» C. 42 km/hr

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A train 100 m long passes a boy, running at 3 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:

A train 100 m long passes a boy, running at 3 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:

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