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      Question

      Length of a train, whose speed is 72 km/h, is 360 metres.

      Find the time taken (in seconds) by train to cross a bridge of length 240 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 = 72 km/h = 72 Γ— (5/18) = 20 m/s
      Required time = (360 + 240) Γ· 20 = 600 Γ· 20 = 30 seconds

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