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      Question

      Three boys runs around a circular track and takes 25

      min, 35 min and 40 min respectively to complete the one round. When do they all come relatively to the same position as at a certain point of time in their path?
      A 1400 min Correct Answer Incorrect Answer
      B 1000 min Correct Answer Incorrect Answer
      C 1200 min Correct Answer Incorrect Answer
      D 1350 min Correct Answer Incorrect Answer

      Solution

      ∴  Required time = LCM of (25, 35 and 40) = 1400 min Hence, after 1400 min they all come relatively to the same position as at a certain point of time in their path.

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