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      Question

      A train running with a speed of 153 km/hr can cross a

      pole in 13 seconds and a platform in 17 seconds. Find the length of the platform.
      A 100 Correct Answer Incorrect Answer
      B 150 Correct Answer Incorrect Answer
      C 140 Correct Answer Incorrect Answer
      D 170 Correct Answer Incorrect Answer

      Solution

      Speed of the train = 153 ร— (5/18) = 42.5 m/sec Length of the train = 42.5 ร— 13 = 552.5 metres Let the length of the platform be โ€˜xโ€™ metres Therefore, 552.5 + x = 42.5 ร— 17 Or, x = 722.5 โ€“ 552.5 = 170 metres

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