Bunuel wrote:
Solution P is 20 percent lemonade and 80 percent carbonated water by volume; solution Q is 45 percent lemonade and 55 percent carbonated water by volume. If a mixture of P & Q contains 70 percent carbonated water, what percent of the volume of the mixture is P?
(A) 37.5%
(B) 52.5%
(C) 55%
(D) 60%
(E) 75%
Kudos for a correct solution.
.8p+.55q=.7(p+q)
p/q=3/2
p/(p+q)=3/5=60%
D



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