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A train 250 meter long, running with a speed of 50 km/hr will pass an electric pole in?

30 seconds
18 seconds
72 seconds
60 seconds

Correct Answer: 18 seconds

Explanation:

∵ Speed of the train = 50 x (5/18) = 125/9 m/sec
∴ Time taken by the train to pass the pole = 250 x (9/125) = 18 sec

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