The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is? Choose the correct choice from the following choices: A) 245 B) 726 C) 566 D) 268 E) 261
Speed = [45 X 5/18] m/sec = [25/2] m/sec Time = 30 sec Let the length of bridge be x metres. Then, (130 + x)/30   = 25/2 =&gt; 2(130 + x) = 750 =&gt; x   = 245 m.   245nswer: 245
<result>A</result>
The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is?