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 PQ contains 60 percent carbonated water, what percent of the volume of the mixture is P?
Choose the correct choice from the following options.
A) 20%	B) 30%	C) 40%	D) 50%	E) 60%
60% is 20%-points below 80% and 5%-points above 55%.   So the ratio of solution P to solution Q is 1:4.   Mixture P is 1/5 = 20% of the volume of mixture PQ.   The answer is 20%.
<result>A</result>
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 PQ contains 60 percent carbonated water, what percent of the volume of the mixture is P?