Mixture and Alligation

Quantitative Aptitude ( CCS)

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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

75 ltrs

81 ltrs

90 ltrs

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.

By: Amit Kumar

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