Two cans P and Q contains milk and water in the ratio of 3 2 and 7 3 respectively The ratio in which...........

Quant (SSC) Mixture and Alligation

Two cans P and Q contains milk and water in the ratio of 3:2 and 7:3 respectively. The ratio in which these two cans be mixed so as to get a new mixture containing milk and water in the ratio 7:4.

4:7

7:3

7:4

7:5

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Explanation:

Milk in 1^st can = 3/5 and water = 2/5.
Similarly in second can milk = 7/10 and water = 3/10.
Take the ratio = K:1
(3k/5 + 7/10)/(2k/5 + 3/10) = 7/4
Solve for k, we get k = 7/4. So the ratio is 7:4