Problems on Trains - Data Intensity 1 Questions and Answers Discussion Page.

22.	Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 seconds. What is the length of the fast train?
	A.	23 m
	B.	23⁡〖2/9〗
	C.	27⁡〖7/9〗
	D.	29 m

Answer: Option C

Explanation:

Relative speed = (40 - 20) km/hr = 20 x 5 m/sec = 50 m/sec.

18 9

Therefore Length of faster train = 50 x 5 m = 250 m = 27 7 m.

9 9 9

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Published by:Michael Daani

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