The length of the bridge, which a train 150 metres long and travelling at 54 km/hr can cross in 30 seconds, is?	Choose one
A) 340 m.
B) 350 m.
C) 320 m.
D) 330 m.
E) 360 m.
Speed = [54X 5/18] m/sec = [15] m/sec Time = 30 sec Let the length of bridge be x metres. Then, (130 + x)/30   = 15 =&gt; (130 + x)/30   = 320 =&gt; x   = 320 m.   Answer:320 m.
<result>C</result>
The length of the bridge, which a train 150 metres long and travelling at 54 km/hr can cross in 30 seconds, is?