The length of the bridge, which a train 110 meters long and travelling at 45 km/hr can cross in 30 seconds, is:
Pick
A) 265
B) 244
C) 245
D) 238
E) 236
Speed = (45 * 5/18) m/sec = (25/2) m/sec. Time = 30 sec. Let the length of bridge be x meters. Then, (110 + X)/30 = 25/2 ==&gt; 2(110 + X) = 750 ==&gt; X = 265 m.   265nswer: Option 265
<result>A</result>
The length of the bridge, which a train 110 meters long and travelling at 45 km/hr can cross in 30 seconds, is: