1.

 A man sitting in a train which is traveling at 50 kmph observes that a goods train, traveling in opposite direction, takes 9 seconds to pass him. If the goods train is 280 m long, find its speed.?

A. 62 kmph
B. 67 kmph
C. 71 kmph
D. 79 kmph
Answer» B. 67 kmph


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