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    Question

    The container has 45 liters of mixture of alcohol and

    water in the ratio of 4:1. If 20 liters of mixture is replaced by water, then what is the ratio of the quantity of alcohol to water in the final mixture?
    A 9:11 Correct Answer Incorrect Answer
    B 8:7 Correct Answer Incorrect Answer
    C 4:5 Correct Answer Incorrect Answer
    D 5:13 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Alcohol in the container = (4/5) ├Ч 45 = 36 liters Water in container = 45 - 36 = 9 liters Alcohol in 20 liters of mixture = 20 ├Ч (4/5) = 16 liters Water in 20 liters of mixture = 20 тАУ 26 = 4 liters Required ratio = (36 тАУ 16) : (9 тАУ 4 + 20) = 4:5

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