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      Question

      Two trains of equal lengths are running on parallel

      tracks in the same direction at 46 km/hr and 36 km/hr respectively. The faster train passes the slower train in 36 seconds. What is the length of each train?
      A 25 m Correct Answer Incorrect Answer
      B 65 m Correct Answer Incorrect Answer
      C 75 m Correct Answer Incorrect Answer
      D 50 m Correct Answer Incorrect Answer

      Solution

      ATQ, Relative Speed = 10 km/hr = 10 * 5/18 = 25/9 m/s. Distance (2L) = Speed x Time 2L = (25/9) x 36 = 100. L = 50m.

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