Question 56215
 A gallon of paint that regularly sells for $20 was reduced to $15.00. By what percentage was the price reduced?  
   
   a. 75%  
   b. 40%  
   c. 33 1/3%  
   d. 25%  

In algebra talk:
let the original price be:20
The discount is x
The sale price is: 15
The equaltion is:
20-x(20)=15
-20+20-20x=15-20
-20x=-5
{{{x=-5/-20=1/4=.25}}}
In percentage that would be: .25(100%)=25% (d)
:
By thinking it through, you can figure it out without algebra: 
You are paying:
{{{15/20=3/4}}}=.75(100%)=75% that means the discount was 100%-75%=25%. (d)
Happy Calculating!!!