The length of the bridge, which a train 150 metres long and travelling at 45 km/hr can cross in 30 seconds, is? Choose the correct choice from the following options:	A) 245	B) 777	C) 282	D) 266	E) 225
Speed = [45 X 5/18] m/sec = [25/2] m/sec Time = 30 sec Let the length of bridge be x metres. Then, (150 + x)/30 = 25/2 =&gt; 2(150 + x) = 750 =&gt; x = 225 m.   Answer: 225
<result>E</result>
The length of the bridge, which a train 150 metres long and travelling at 45 km/hr can cross in 30 seconds, is?