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Two trains are running with speeds 30 kmph and 58 kmph respectively in the same direction. A man in the slower train passes the faster train in 18 seconds. Find the length of the faster train?

Correct Answer: 140 mts

Explanation:

Speeds of two trains = 30 kmph and 58 kmph


=> Relative speed = 58 - 30 = 28 kmph = 28 x 5/18 m/s = 70/9 m/s


Given a man takes time to cross length of faster train = 18 sec


 


Now, required Length of faster train = speed x time = 70/9  x  18 = 140 mts.


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