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    Question

    A 210 litres mixture contains only water and phenyl in

    the ratio 3:2, respectively. If 60 litres of this mixture is replaced with 100 litres of alcohol, then what will be the ratio of quantity of water to that of alcohol in the resultant mixture?
    A 9:11 Correct Answer Incorrect Answer
    B 11:10 Correct Answer Incorrect Answer
    C 9:10 Correct Answer Incorrect Answer
    D 7:8 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Initial quantity of water in the mixture = 210 × (3/5) = 126 litres After removing 60 litres of the mixture, quantity of water = (210 – 60) × (3/5) = 150 × (3/5) = 90 litres Therefore required ratio = 90:100 = 9:10

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