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    • Question

      A train running with a speed of 117 km/hr can cross a

      pole in 19 seconds and a platform in 23 seconds. Find the length of the platform.
      A 130 metres Correct Answer Incorrect Answer
      B 110 metres Correct Answer Incorrect Answer
      C 135 metres Correct Answer Incorrect Answer
      D 180 metres Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Speed of the train = 117 × (5/18) = 32.5 m/sec Length of the train = 32.5 × 19 = 617.5 metres Let the length of the platform be ‘x’ metres Therefore, 617.5 + x = 32.5 × 23 Or, x = 747.5 – 617.5 = 130 metres

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