Quantitative Aptitude – Mixture – Two alcohol solutions, A and B, are mixed in the proportion
Slot – 3 – Quantitative Aptitude – Mixture – Two alcohol solutions, A and B, are mixed in the proportion
Q. 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?
92%
90%
94%
89%
Answer: 92%
Solution:
As per question , if B has b % alcohol then,
(60 + 3b+ 4*60)/8 = 72
300+ 3b = 576
3b = 276
b = 92
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