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How long does a train 90 metres long running at the speed of 71 km/hr take to cross a bridge 132 metres in length?

  • A.9.8 sec
  • B.11.26 sec
  • C.12.42 sec
  • D.14.3 sec

Answer: B

Speed = (71 x 5/18) m/sec = 19.72 m/sec
Total distance covered = (90 + 132) m = 222 m.
Required time = (222/19.72) sec = 11.26 sec

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