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      Question

      Two trains A and B, were proceeding in the same

      direction on parallel tracks at 26 km/hr and 80 km/hr respectively. A man noticed that it took exactly 14 seconds for the faster train to pass by him. What is the length of the faster train?
      A 210 m Correct Answer Incorrect Answer
      B 225 m Correct Answer Incorrect Answer
      C 150 m Correct Answer Incorrect Answer
      D 180 m Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Relative speed = (80 โ€“ 26) km/hr = 54 km/hr => 54 ร— (5/18) = 15 m/sec Length of the faster train = 15 ร— 14 = 210 m

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