Solution Y is 30 percent liquid X and 70 percent water.
Solution Y is 30 percent liquid X and 70 percent water. If 3 kilograms of water evaporate from 8 kilograms of solution Y and 3 kilograms of solution Y are added to the remaining 6 kilograms of liquid, what percent of this new solution is liquid X?
Answer/Solution
41.3%
Steps/Work
In 8 kilograms of solution Y there are 0.3*8=2.4 kilograms of solution X;
After 3 kilograms of water are replaced by 3 kilograms of solution Y, to the existing 2.4 kilograms of solution X, 0.3*3=0.9 kilograms of solution X are added, so in the new solution of 8 kilograms there are 2.4+0.9=3.3 kilograms of solution X, which is 3.3/8*100=41.3% of this new solution.
Answer: C.
After 3 kilograms of water are replaced by 3 kilograms of solution Y, to the existing 2.4 kilograms of solution X, 0.3*3=0.9 kilograms of solution X are added, so in the new solution of 8 kilograms there are 2.4+0.9=3.3 kilograms of solution X, which is 3.3/8*100=41.3% of this new solution.
Answer: C.