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Mathematics>Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
In an 8-gram solution of water and alcohol, the ratio by mass of water to alcohol is 3 to 1. If 12 grams of a solution consisting of 2 grams water for each gram of alcohol is added to the 8-gram solution, what fraction by mass of the new solution is alcohol?
(A) 1/6
(B) 3/10
(C) 5/12
(D) 7/12
(E) 5/24
