Solution Y is 30 percent liquid X and 70 percent water. If 2 kilograms of water evaporate from 8 kilograms of solution Y and 2 kilograms of solution Y are added to the remaining 6 kilograms of liquid, what percent of this new solution is liquid X?
Choose the correct answer:
A) 30 %
B) 33 1 / 3 %
C) 37 1 / 2 %
D) 40 %
E) 50 %

Rationale: "initial solution = > 8 kg ( x : w : : 2.4 : 5.6 ) after evaporation initial solution = > 6 kg ( x : w : : 2.4 : 3.6 ) new solution = > 2 kg ( x : w : : 0.6 : 1.4 ) mixing ( initial solution + new solution ) = > 6 kg ( 2.4 : 3.6 ) + 2 kg ( 0.6 : 1.4 ) = = 8 kg [ ( 2.4 + 0.6 ) : ( 3.6 + 1.4 ) ] = 8 kg ( x : water : : 3 kg : 5 kg ) hence % of x = 3 / 8 = 37.5 % answer : c"
Answer: C