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      Question

      Two persons start from the same point at the same time

      in opposite directions with speeds 5 km/h and 7 km/h. After how many hours will they be 36 km apart?
      A 6 hrs Correct Answer Incorrect Answer
      B 3 hrs Correct Answer Incorrect Answer
      C 2 hrs Correct Answer Incorrect Answer
      D 5 hrs Correct Answer Incorrect Answer

      Solution

      ATQ, Relative speed (opposite directions) = 5 + 7 = 12 km/h Time = 36/12 = 3 hours

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