Question 727123
.80x+.25(1-x)=.60*1
.80x+.25-.25x=.60
.55x=.60-.25
.55x=.35
x=.35/.55
x=.636 liters of 80% solution is used.
1-.636=.364 liters of 25% solution is used.
Proof:
.80*.636+.25*.364=.60
.51+.09=.60
.60=.60