A train, 200 metre long, is running at a speed of 54 km/hr.

A train, 200 metre long, is running at a speed of 54 km/hr. The time in seconds that will be taken by train to cross a 175 metre long bridge is :

Speed of train = 54 kmph

=		54 × 5		m/sec.
		18

= 15 m/sec.

∴ Required time =	Length of train and bridge
	Speed of train

=		200 + 175		seconds
		15

=		375		seconds
		15

= 25 seconds