When 18 litres of milk and water solution is mixed with 20 litres of milk and water solution having 75% percent of milk, the resultant mixture has 48% milk. What is the percentage of milk in the first solution?

Correct answer marked below

12%

14%

16%

18%

Correct

20%

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What this question tests

Your ability to reason about weighted averages and the composition of mixtures.

Averaging the percentages of two solutions without weighting by their volumes.