Two cans of 60 and 80 litres are filled with the mixtures of milk and water The proportion of milk a...........

Quant (SSC) Mixture and Alligation

Two cans of 60 and 80 litres are filled with the mixtures of milk and water. The proportion of milk and water in the cans being 5:7 and 9:7 respectively. If the contents of the two cans are mixed and 30 litres of the water is added to the whole, then find the ratio of milk and water in the final mixture?

7:9

7:10

8:11

9:7

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Explanation:

Milk = 60*5/12 = 25 and water = 60*7/12 = 35
Milk = 80*9/16 = 45 and water = 80*7/16 = 35
Milk = 70 and water = 70 + 30 = 100
Hence, the ration of milk and water is 70:100 = 7:10

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