The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:  Select
A) 200m B) 225m C) 245m D) 250m E) 260m
Speed = 45/18 x	5	m/sec	= 25/2	m/sec.   Time = 30 sec.   Let the length of bridge be x metres.   Then,	130 + x/ 30	=	25/2   2(130 + x) = 750   x = 245 m.   ANSWER IS 245m
<result>C</result>
The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is: