Problem on Trains

Problem on Trains

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Problem on Trains
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Aptitude miscellaneous
  1. Find the length of a bridge, which a train 130 metres long travelling at 45 km an hour, can cross in 30 seconds ?








  1. View Hint View Answer Discuss in Forum

    Speed of the train = 45 km/hr = 45 x (5/18) = 25/2 m/sec
    Let the length of the bridge be L metres
    ∴ (L + 130) / (25/2) = 30

    Correct Option: D

    Speed of the train = 45 km/hr = 45 x (5/18) = 25/2 m/sec
    Let the length of the bridge be L metres
    ∴ (L + 130) / (25/2) = 30
    ⇒ L + 130 = 15 x 25
    L = 375 - 130 = 245 metres

  1. A train 160 metres long passes a standing man in 18 seconds. What is the speed of the train ?








  1. View Hint View Answer Discuss in Forum

    Speed of the train = (160/18) x (18/5)

    Correct Option: C

    Speed of the train = (160/18) x (18/5) = 32 km/hr.