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    Question

    Quantity of water in a 300 litres mixture (Milk + Water)

    is 60 litres less than the quantity of milk in it. Find the quantity of water to be mixed so that the quantity of milk in the mixture becomes 45% of the whole mixture.
    A 60 litres Correct Answer Incorrect Answer
    B 120 litres Correct Answer Incorrect Answer
    C 100 litres Correct Answer Incorrect Answer
    D 140 litres Correct Answer Incorrect Answer

    Solution

    Quantity of water in the mixture = {(300 - 60)/2} = 120 litres

    So, quantity of milk in the mixture = (300 - 120) = 180 litres

    Total quantity of the mixture if quantity of milk in the mixture becomes 45% = 180 × (100/45) = 400

    So, quantity of water needs to be mixed = (400 - 300) = 100 litres

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