Arithmetichard · Past Paper
The ratio of milk and water in a mixture of 45 liters is 4:1. How much water must be added to make the ratio 3:2?
A5 liters
B10 liters
C15 liters
D20 liters
✓ Correct Answer: C — 15 liters
Milk = 36L, Water = 9L. Let x be added water: 36/(9+x) = 3/2 => 72 = 27 + 3x => 3x = 45 => x = 15.
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