4 liters of a 25 percent solution of alcohol in water are mixed with 3 liters of a 11 percent alcohol in water solution. What is the percentage of alcohol in the new solution?
Pick
A) 18.2%	B) 18.6%	C) 19.0%	D) 19.4%	E) 19.8%
The total amount of alcohol is 0.25(4) + 0.11(3) = 1.33 liters.   The percentage is 1.33 / 7 = 133 / 700 = 19 / 100 which is 19%   The answer is 19.0%.
<result>C</result>
4 liters of a 25 percent solution of alcohol in water are mixed with 3 liters of a 11 percent alcohol in water solution. What is the percentage of alcohol in the new solution?