Free Practice Question
PS · Problem Solving
705-805
Mixture
A vessel contains 12 L wine and another contains 4 L water. 3 L is removed from each of the vessels and transferred into one another. The same operation is repeated once more. What is the final ratio of wine to water in two vessels?
Answer Choices
Correct answer marked belowA
1:3 and 3:1
B
3:1 and 1:3
3:1 and 3:1
Correct
D
2:3 and 1:2
E
1:3 and 1:2
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What it tests
Your ability to reason about weighted averages and the composition of mixtures.
Common trap
Averaging the percentages of two solutions without weighting by their volumes.
Details
Difficulty
705-805
Type
PS
Category