Let us assume that the lotion has 50% alcohol and 50% water. ratio = 1:1 As the total solution is 9ml alcohol = water = 4.5ml Now if we want the quantity of alcohol = 30% The quantity of water = 70% The new ratio = 3:7 Let x ml of water be added We get,
One type of liquid contains 25 % of benzene, the other contains 30% of benzene. A can is filled with 6 parts of the first liquid and 4 parts of the second liquid. Find the percentage of benzene in the new mixture.