A Chemist Needs 10 Liters of a 25% Acid Solution

Multiple Choice

A chemist needs 10 liters of a 25% acid solution.The solution is to be mixed from three solutions whose concentrations are 10%,20%,and 50%.How many liters of each solution will satisfy each condition? Use 2 liters of the 50% solution. ​

A) 7 L of 10%,7 L of 20%,2 L of 50%
B) 1 L of 10%,2 L of 20%,7 L of 50%
C) 1 L of 10%,7 L of 20%,1 L of 50%
D) 1 L of 10%,7 L of 20%,2 L of 50%
E) 7 L of 10%,1 L of 20%,2 L of 50%