The length of the bridge, which a train 160 metres long and travelling at 45 km/hr can cross in 30 seconds, is?  Select
A) 876 m B) 157 m C) 215 m D) 156 m E) 167 m
Speed = [45 X 5/18] m/sec   = [25/2] m/sec Time = 30 sec Let the length of bridge be x metres. Then, (160 + x)/30 = 25/2   =&gt; 2(160 + x) = 750 =&gt; x   = 215 m.   Answer: 215 m
<result>C</result>
The length of the bridge, which a train 160 metres long and travelling at 45 km/hr can cross in 30 seconds, is?