The length of the bridge, which a train 140 metres long and travelling at 45 km/hr can cross in 30 seconds, is?	Choose the correct choice from the following
A) 245 B) 777 C) 282 D) 266 E) 235
Speed = [45 X 5/18] m/sec = [25/2] m/sec Time = 30 sec Let the length of bridge be x metres. Then, (140 + x)/30 = 25/2 =&gt; 2(140 + x) = 750 =&gt; x = 235 m.   Answer: 235
<result>E</result>
The length of the bridge, which a train 140 metres long and travelling at 45 km/hr can cross in 30 seconds, is?