Multiple Choice Questions on In a 729 litres mixture of milk and water the ratio of milk to water is 7 2 To get a new mixture con........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

In a 729 litres mixture of milk and water the ratio of milk to water is 7 2 To get a new mixture con...........

Quantitative Aptitude ( CCS) Mixture and Alligation
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    In a 729 litres mixture of milk and water, the ratio of milk to water is 7:2. To get a new mixture containing milk and water in the ratio 7:3, the amount of water to be added is:

    69 ltrs

    Incorrect Answer

    75 ltrs

    Incorrect Answer

    81 ltrs

    Correct Answer

    90 ltrs

    Incorrect Answer
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    Explanation:

    milk:water :- 7: 2; Milk:-567, water:-162,

    let water added be X.

    In new solution Milk:- 567, Water: 162+x,

    Total solu:-729+x and ratio is 7:3

    simply 7/10(729+x)=567, 

    X =81.

    Hence, option 3 is the correct answer.

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