A train 100 meters long completely crosses a 300 meters long bridge in 45 secon

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Question

A train 100 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?

Options:

A . 32 kmph

B . 36 kmph

C . 40 kmph

D . 48 kmph

Answer: Option A

S =
(100 + 300)/45 = 400/45 * 18/5 = 32

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