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How long will a train 130 m long travelling at 40 km an hour, take to pass a kilometer stone?

12 sec
11.7 sec
11.2 sec
11 sec

Correct Answer: 11.7 sec

Explanation:

Total distance = 130 m = 0.13 km
Speed of the train = 40 km /hr
Time taken = 0.13/40 hr = (0.13 x 60 x 60) / 40 = 11.7 sec.

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