A 600 meter long train crosses a signal post in 40 seconds. How long will it ta

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Question

A 600 meter long train crosses a signal post in 40 seconds. How long will it take to cross a 3 kilometer long bridge, at the same speed?

Options:

A . 4 min

B . 5 min

C . 3 min 4 sec

D . Data inadequate

Answer: Option A

S =
600/40 = 15 mps

S =
3600/15 = 240 sec = 4 min

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