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    Question

    In a mixture of milk and water, there is only 16% water.

    After replacing the mixture with 8 liters of pure milk , the percentage of milk in the mixture become 86%. The quantity of mixture is:
    A 91 litres Correct Answer Incorrect Answer
    B 64 litres Correct Answer Incorrect Answer
    C 108 litres Correct Answer Incorrect Answer
    D 154 litres Correct Answer Incorrect Answer

    Solution

    Milk Water 84% 16% (initially) 86% 14% ( after replacement) Left amount = Initial amount [1 − (replaced amount/total amount)] 14 = 16 [1 − (8/k)] k = 64

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