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How long will it take to pass completely through the tunnel ?

+1 vote
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An express electric train takes exact three seconds to enter tunnel which is 1 mile long.

If train is traveling at 120 mile an hour, how long will it take to pass completely through the tunnel ?

posted Dec 1, 2020 by Udita

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1 Answer

+1 vote

33 seconds from front entering the tunnel to rear leaving the tunnel.
.
From start to end tunnel takes 1 / 120 hour = 30 seconds.
It takes another 3 seconds from front train to rear train.

answer Dec 10, 2020 by Jcm



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