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    Question

    140 litres of mixture X contains acetone and glycerine in the ratio 5:9, respectively. 70 litres of the mixture is withdrawn and labelled as mixture Y and 6 litres of acetone is added to it. Find the ratio of glycerine to acetone in mixture Y.

    A 14:13 Correct Answer Incorrect Answer
    B 35:31 Correct Answer Incorrect Answer
    C 45:31 Correct Answer Incorrect Answer
    D 42:41 Correct Answer Incorrect Answer
    E 45:41 Correct Answer Incorrect Answer

    Solution

    Quantity of acetone in mixture Y = 70 × 5/14 = 25 litres Quantity of glycerine in mixture Y = 70 – 25 = 45 litres After addition of 6 litres of acetone, New ratio of glycerine to acetone = 45:(25 + 6) = 45:31

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