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Q.
A train of length 250 m crosses a bridge of length 150m in 20 seconds. What is the speed of train?
A.
72 km/h
B.
62 km/h
C.
92 km/h
D.
85 km/h
E.
None of the above
View Answer
Correct choice: A
Explanation:
(length of train+ length of bridge) = speed of train x Time (250+150) = 20 x Speed Speed = 400/20= 20 m/s =72 km/h
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