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

4.	The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is?
	A.	200 m
	B.	225 m
	C.	245 m
	D.	250 m

Answer: Option C

Explanation:

Speed = 45 x 5 m/sec = 25 m/sec.

18 2

Time = 30 sec.

Let the length of bridge be x metres.

Then,	130 + x	=	25
	30		2

2(130 + x) = 750

x = 245 m.

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Published by:Michael Daani

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