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      Question

      Two trains, each 250 m in length, are running on

      parallel lines in opposite directions at speeds of 90 km/h and 60 km/h respectively. In how many seconds will they cross each other completely?
      A 15 sec Correct Answer Incorrect Answer
      B 18 sec Correct Answer Incorrect Answer
      C 10 sec Correct Answer Incorrect Answer
      D 12 sec Correct Answer Incorrect Answer

      Solution

      The correct answer is D

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