Mixtures & Alligation · Question 20 · Easy
A 30-litre mixture has milk and water in the ratio 4 : 1. How much milk must be added to make the ratio 9 : 1?
- 24 litres
- 20 litres
- 30 litres
- 54 litres
Answer and explanation
Answer: C. 30 litres
Explanation: Milk = 24 L and water = 6 L. For 9 : 1 with 6 L water, milk must be 54 L, so 54 − 24 = 30 litres must be added.
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