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    Question

    In the mixture of 84 liters, the ratio of milk and water

    is 5: 7. If this ratio is changed to 3: 5, then tell the amount of excess water (in liters) mixed in the mixture.
    A 8.75 Correct Answer Incorrect Answer
    B 625 Correct Answer Incorrect Answer
    C 12.5 Correct Answer Incorrect Answer
    D 9.33 Correct Answer Incorrect Answer

    Solution

    Total quantity of mixture = 84 liters Quantity of milk in the mixture = 5/12 x 84 = 35 liters Quantity of water in the mixture = 84-35 = 49 liters Let the quantity of water added to the mixture be x liters. 35/ (49 + x) = 3/5 35 x 5 = (49 + x) x 3 175=147 + 3x 3x = 175-147 3x = 28   x = 28/3 x = 9.33 liters.

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