The length of the bridge, which a train 150 metres long and travelling at 45 km/hr can cross in 30 seconds, is?
Options:
A) 255
B) 267
C) 225
D) 277
E) 211
Speed = [45 X 5/18] m/sec = [25/2] m/sec Time = 30 sec Let the length of bridge be x metres. Then, (150 + x)/30 = 25/2 =&gt; 2(150 + x) = 750 =&gt; x = 225 m. Answer:225
<result>C</result>
The length of the bridge, which a train 150 metres long and travelling at 45 km/hr can cross in 30 seconds, is?