The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is? Answers:
A) 767 m
B) 467 m
C) 245 m
D) 567 m
E) 544 m
Speed = [45 X 5/18] m/sec = [25/2] m/sec Time   = 30 sec Let the length of bridge be x metres. Then, (130 + x)/30 = 25/2   =&gt; 2(130 + x) = 750 =&gt; x = 245 m.   Answer:245 m
<result>C</result>
The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is?