In Solution P, the proportion of water to alcohol is 5:2. In Solution Q, the proportion of water to alcohol is 3:2. If the two solutions are combined, what is the concentration of alcohol in the new solution if the original solutions were mixed in equal amounts?	Select the correct option:
A) 25%  B) 28%  C) 31%  D) 34%  E) 37%
Let V be the total volume of the new solution.   The amount of alcohol added from Solution P is (2/7)*V/2=(1/7)*V   The amount of alcohol added from Solution Q is (2/5)*V/2=(1/5)*V   The total amount of alcohol in the new solution is (1/7+1/5)*V=(12/35)*V   The alcohol concentration is 12/35=34% (approximately)   The answer is 34%.
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In Solution P, the proportion of water to alcohol is 5:2. In Solution Q, the proportion of water to alcohol is 3:2. If the two solutions are combined, what is the concentration of alcohol in the new solution if the original solutions were mixed in equal amounts?