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      Question

      Train F moves at a speed of 48km/h and takes 12 seconds

      to cross a pole. What is the time taken by train F to cross train G (length 200m) running in the same direction at a speed of 24km/h?
      A 48 seconds Correct Answer Incorrect Answer
      B 50 seconds Correct Answer Incorrect Answer
      C 52 seconds Correct Answer Incorrect Answer
      D 54 seconds Correct Answer Incorrect Answer

      Solution

      Length of the train F = 48 × 5/18 × 12 = 160m
      Required time = (160 + 200)/(24 × 5/18) = 360/(20/3) = 360 × 3/20 = 54 seconds

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