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    Question

    A 48 litres mixture of milk and water contains them in the

    ratio 3:1. After removing 12 litres of the mixture and replacing it with ‘x’ litres of water, the resulting mixture has water to milk ratio of 1:1. What is the value of ‘x’?
    A 18 Correct Answer Incorrect Answer
    B 9 Correct Answer Incorrect Answer
    C 13 Correct Answer Incorrect Answer
    D 15 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Quantity of remaining mixture = 48 – 12 = 36 litres

    Quantity of milk in 36 litres of mixture = 36 × (3/4) = 27 litres

    And, quantity of water in 36 litres = 36 – 27 = 9 litres

    So, quantity of water in resultant mixture = (1/1) × 27 = 27 litres

    Required quantity of water added = 27 – 9 = 18 litres

    So, x = 18

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