A train 200 metres long passes through a tunnel of 1.3 km. If speed of the train is 20 m/s then how long the train will take to come out of the tunnel completely?
(A) 60 seconds
(B) 50 seconds
(C) 40 seconds
(D) 30 seconds
(E) None of the above
Total distance to be covered = length of the train + length of the tunnel = 200 m + 1300 m = 1500 m
Speed of the train = 50 m/s
Distance = speed
time
seconds
Hence, the answer is (D).
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