Mathematics · Mixtures and Alligations
Two alcohol solutions, A and B, are mixed in the proportion 1 : 3 by volume. The volume of the mixture is then doubled by adding solution A such that the resulting mixture has 72% alcohol. If solution A has 60% alcohol, then the percentage of alcohol in solution B is:
- 189%
- 290%
- 392%✓
- 494%
Correct answer
92%
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