The length of the bridge, which a train 130 metres long and travelling at 108 km/hr can cross in 30 seconds, is:
Choose the correct option
A) 200 m  B) 225 m  C) 245 m  D) 170 m  E) 240 m
Speed = [108 X 5/18] m/sec = 30 m/sec   Time = 10 sec   Let the length of bridge be x metres.   Then, (130 + x)/30 = 10 =&gt; 130 + x = 300 =&gt; x = 170 m.   ANSWER:170 m
<result>D</result>
The length of the bridge, which a train 130 metres long and travelling at 108 km/hr can cross in 30 seconds, is: