A 60-litre mixture contains milk and water in the ratio 7 : 3. How many litres of water must be added to make the ratio 3 : 2?
A. 8
B. 12
C. 15
D. 10
A. 8
B. 12
C. 15
D. 10
Best answer
Answer: D. 10
Answer: (D) 10
Milk = 42 L, water = 18 L. Need 42 : (18 + w) = 3 : 2, so 18 + w = 28 and w = 10 L.
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