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

9.	Two trains are moving in opposite directions @ 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is?
	A.	36
	B.	45
	C.	48
	D.	49

Answer: Option C

Explanation:

Relative speed = (60+ 90) km/hr

=		150 x	5	m/sec
			18

=		125	m/sec.
		3

Distance covered = (1.10 + 0.9) km = 2 km = 2000 m.

Required time =		2000 x	3	sec = 48 sec.
			125

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Published by:Michael Daani

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