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      Question

      A mixture contains 80 ml water and rest ‘x’ ml milk.

      When 0.25x ml of water is added to the mixture, the quantity of water becomes 1/3rd of the mixture. Find the value of ‘x’.
      A 280 Correct Answer Incorrect Answer
      B 320 Correct Answer Incorrect Answer
      C 360 Correct Answer Incorrect Answer
      D 400 Correct Answer Incorrect Answer

      Solution

      According to the question,
      Quantity of water after addition of 0.25x ml water = (80 + 0.25x)
      Total quantity of the mixture = 80 + 0.25x + x = (80 + 1.25x)
      Therefore,
      (1/3)(80 + 1.25x) = (80 + 0.25x)
      Or, 80 + 1.25x = 240 + 0.75x
      Or, 0.5x = 160
      Or, x = 320

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