A 40 litre mixture contains milk and water in the ratio of 3 2 20 litres of the mixture is drawn of ...........

Quant (SSC) Mixture and Alligation

A 40 litre mixture contains milk and water in the ratio of 3:2. 20 litres of the mixture is drawn of and filled with pure milk. This operation is repeated one more time. At the end what is the ratio of milk and water in the resulting mixture?

5:1

6:1

8:1

9:1

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Explanation:

milk = 40*3/5 = 24 and water = 16 litres initially
milk = 24 – 20*3/5 + 20 = 32 – 20*4/5 + 20 = 36
water = 16 – 20*2/5 = 8 – 20*1/5 = 4
36 : 4 = 9 : 1