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    Question

    There are two buckets X and Y containing mixture of milk

    and water in which concentration of milk is (a-9)% and (a+15)%, respectively. They are mixed together in a fixed ratio to get 64 litres of mixture of (a+12)% milk concentration. Find the amount of mixture used from bucket X.
    A 12 litres Correct Answer Incorrect Answer
    B 14 litres Correct Answer Incorrect Answer
    C 11 litres Correct Answer Incorrect Answer
    D 8 litres Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Ratio = 3: 21 = 1: 7 Therefore, required amount of mixture used from bucket X = (1/8) × 64 = 8 litres.

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