A train passes a platform of 90 m long in 30 seconds and a man standing on the platform in 15 seconds. What is the speed of the train?

A train passes a platform of 90 m long in 30 seconds and a man standin

1.	A train passes a platform of 90 m long in 30 seconds and a man standing on the platform in 15 seconds. What is the speed of the train?
A.	5 m/s
B.	3 m/s
C.	6 m/s
D.	2 m/s
Answer» D. 2 m/s

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A train passes a platform of 90 m long in 30 seconds and a man standing on the platform in 15 seconds. What is the speed of the train?

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