A mixture contains milk and water in the ratio of 4 1 When 10 litres of mixture is replaced by 10 li...........

Quantitative Aptitude (CDS) Ratio, Proportion

A mixture contains milk and water in the ratio of 4:1. When 10 litres of mixture is replaced by 10 litres of water then their ratio becomes 2:3. How much milk was originally there in the container at the final?

14 liters

15 liters

16 liters

17 liters

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Explanation:

milk : water = 4 : 1 = 4/5×10 : 1/5×10
Milk = 8 litres and water = 2 litres
milk / water = (4x-8)/(x-2+10) = 2/3
12x-24 = 2x +16
10x = 40
x = 4
4x = 16 litres