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A mile long train is moving at sixty miles an hour when it reaches a mile long tunnel. How long does it take the........

+2 votes
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A mile long train is moving at sixty miles an hour when it reaches a mile long tunnel. How long does it take the entire train to pass through the tunnel?

posted Jul 15, 2017 by Samardeep Acharya

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1 Answer

+2 votes

Short answer: 2 minutes.
Long answer: Speed of the Train is 1 (mile / minute)
Distance needed to be travelled to completely get the train in and out of the tunnel = length of the tunnel + length of the train
= 1 + 1 = 2 miles.
Time to cross 2 miles = 2 minutes.

answer Jul 16, 2017 by Tejas Naik



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