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    Question

    A container holds 80 litres of a solution which has milk

    and water in the ratio 3:2. 40 litres of this solution is taken out, and then 10 litres of water is added. What is the new ratio of water to milk?
    A 7:2 Correct Answer Incorrect Answer
    B 5:8 Correct Answer Incorrect Answer
    C 4:9 Correct Answer Incorrect Answer
    D 13:12 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Initial quantity of milk = (3/5) Ă— 80 = 48 litres

    Initial quantity of water = (2/5) Ă— 80 = 32 litres

    Final quantity of milk = 48 - (3/5) Ă— 40 = 24 litres

    Final quantity of water = 32 - (2/5) Ă— 40 + 10 = 26 litres

    Required ratio = 26 : 24 = 13 : 12

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