Two solutions have milk amp water in the ratio 7 5 and 6 11 Find the proportion in which these two s...........

Quantitative Aptitude ( CCS) Ratio, Proportion

Two solutions have milk & water in the ratio 7:5 and 6:11. Find the proportion in which these two solutions should Be mixed so that the resulting solution has 1 part milk and 2 parts water ?

7:12

8:13

9:4

2:5

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Explanation:

To get the solution that contains 1 part of milk and two parts of water,
they must be mixed in the ratio as
7x+6x/5y+11y = 1/2
26x = 16y
x/y = 16/26
x/y = 8/13

Hence, option 2 is the correct answer.