The length of the bridge, which a train 150 meters long and travelling at 45 km/hr can cross in 30 seconds, is? Choose the correct choice from the following options
A) 388
B) 267
C) 225
D) 288
E) 261
Speed = (45 * 5/18) m/sec = (25/2) m/sec. Time = 30 sec. Let the length of bridge be x meters. Then, (150 + X)/30 = 25/2 ==&gt; 2(150 + X) = 750 ==&gt; X = 225 m.   Answer: 225
<result>C</result>
The length of the bridge, which a train 150 meters long and travelling at 45 km/hr can cross in 30 seconds, is?