Discussion of Question with ID = 057 under Problems-on-Trains

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A train of length 107m is running at a speed of 38m/s. How long will it take to cross a tunnel of length 45m?


4 sec.


5 sec.


3 sec.


6 sec.

Ans: a

The total distance to be covered is equal to the length of the train plus the length of the tunnel. By the time and distance formula, we get time = distance/speed, which gives ${107 + 45}/38$ = 4s.

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