Question 970180
1000 liters of a solution was available, but the solution was 65% alcohol. Jack needed a solution which was 50% alcohol. How many liters of alcohol had to be extracted so that the solution would be 50% alcohol?
***
let x=amt of alcohol that had to be extracted
.65(1000)-x)=.50(1000-x)
650-x=500-.50x
.50x=150
x=300
amt of alcohol had to be extracted=300 liters