Free Practice Question
PS · Problem Solving
705-805
Mixture
15 liters are taken of from a container full of liquid A and replaced with Liquid B. Again 15 more liters of the mixture is taken and replaced with liquid B. After this process, if the container contains Liquid A and B in the ratio 9:16, what is the capacity of the container?
Answer Choices
Correct answer marked belowA
45
B
42
37.5
Correct
D
36
E
25
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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