River's chemistry class is doing an experiment in which the students create a 3096 hydrochloric acid mixture by mixing a certain amount of 25% solution with a different amount of 5096
solution. The amount of 25% solution used is 20 liters less than 5 times the amount of 5096
solution used. How much of the 25% solution and the 50% solution are needed in all?
A 30 liters, 10 liters
B 80 liters, 20 liters
C 130 liters, 30 liters
D 50 liters, 40 liters