Question

A train usually makes it run in 2 hours 20 minutes at an average speed of 42 km/per hour. How long it will take if the speed is reduced to 28 km/per hour.

Answer 1

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Answer 2

Answer:

The time taken to pass a man standing on the platform by a train 280 m long travelling at 42 kmph = 280m*60*60sec/42*1000 m = 24 sec. here the distance is the length of train itself. = 280m. speed = 42km/h = 42×5/18 = 35/3m/s.

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