Seventy-five grams of alcohol were added to 225 grams of a 15% alcohol solution. What was the percent of alcohol in the new solution?
75 + 0.15*225 = 108.75 grams of alcohol.
%Alcohol = (108.75/(75+225)) * 100% = 36.25.
%Alcohol = (108.75/(75+225)) * 100% = 36.25.