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    Question

    The Jar contains only 8 litres of milk and the rest is

    water. A new mixture in which concentration of milk is 30%, is to be formed by replacing the Jar mixture. How many litres of mixture shall be replaced with pure milk if there was initially 32 litres of water in the mixture?
    A 10 litres Correct Answer Incorrect Answer
    B 3 litres Correct Answer Incorrect Answer
    C 12 litres Correct Answer Incorrect Answer
    D 5 litres Correct Answer Incorrect Answer

    Solution

    Milk : water 8 : 32 Ratio = 1:4 Initial mixture = 8 + 32 = 40 litres Using Allegation method, Initial Mixture = 8 unit → 40 litres 1 unit = 5 litre The mixture of water and milk is replaced by 5 litres.

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