Multiple Choice Questions on A 30 litres milk water mixture contains 50 milk How much pure milk need to be added to this mixture ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A 30 litres milk water mixture contains 50 milk How much pure milk need to be added to this mixture ...........

Quantitative Aptitude ( CCS) Mixture and Alligation
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    A 30 litres milk-water mixture contains 50% milk. How much pure milk need to be added to this mixture to make the mixture 30% water? 

    10 litres

    Incorrect Answer

    15 litres

    Incorrect Answer

    18 litres

    Incorrect Answer

    20 litres

    Correct Answer
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    Explanation:

    30 litres mixture contains 15 litres of water. When milk added to this, quantity of water will remain same (i.e. 15 l)
    Let x l of pure milk to be added, then
    30% of (30+x) = 15
    Solve, x = 20

    By: Pranav Gupta
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