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      Question

      Length of a train, whose speed is 48 km/h, is 240 metres.

      Find the time taken (in seconds) by train to cross a bridge of length 360 metres.
      A 25 seconds Correct Answer Incorrect Answer
      B 30 seconds Correct Answer Incorrect Answer
      C 36 seconds Correct Answer Incorrect Answer
      D 40 seconds Correct Answer Incorrect Answer
      E 45 seconds Correct Answer Incorrect Answer

      Solution

      Speed of train = 48 km/h = 48 ร— (5/18) = 40/3 m/s
      Required time = (240 + 360) รท (40/3) = 600 ร— (3/40) = 45 seconds

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