The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is?	Pick
A) 277	B) 278	C) 245	D) 278	E) 251
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: Option C   Explanation:   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
<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?