A train 360 m long is running at a speed of 45 km hour In what time will it pass a bridge 140 m long...........

Quantitative Aptitude ( CCS) Time & distance

A train 360 m long is running at a speed of 45 km/hour. In what time will it pass a bridge 140 m long?

40 second

42 second

45 second

48 seconds

Formula for converting from km/hr to m/s: X km/hr =		X x	5/		m/s.
			18

Therefore, Speed =		45 x	5/	m/sec	=	25/	m/sec.
			18			2

Total distance to be covered = (360 + 140) m = 500 m.

Formula for finding Time =		Distance
		Speed

Required time =

500 x 2/25

sec

= 40 sec.

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