The length of the bridge, which a train 130 meters long and travelling at 45 km/hr can cross in 30 seconds, is: Select the correct option
A) 377
B) 268
C) 245
D) 665
E) 187
Speed = (45 * 5/18) m/sec = (25/2) m/sec. Time = 30 sec. Let the length of bridge be x meters. Then, (130 + X)/30 = 25/2 ==&gt; 2(130 + X) = 750 ==&gt; X = 245 m.   Answer: 245
<result>C</result>
The length of the bridge, which a train 130 meters long and travelling at 45 km/hr can cross in 30 seconds, is: