Proportional Relationships with Simple Interests

Question

A video game that usually cost $50 is on sale for $32.50. What percent of the regular price is the discount?

Answer 1

Hi Tameka,

 

For percent problems the formula to memorize is:
   Part = Percent x Whole  (Just remember that percent is a decimal or fraction. That is, 75% is .75 or 3/4.)

 

So, for this question, we know a Part and the Whole; Percent is what we need to find.  But, the question asks for the Percent of the Discount, not the price paid.  So, let's get that number 1st.

   50 - 32.5 = 17.5

 

Now we can use our formula.

   17.50 = X x 50  or  17.5 = 50X

 

From there it's simple.  In case you need help ...

   X = 17.5/50   ...   X = .35

 

Remember that .35 means 35%.

 

Again, that formula can go a long way on Percent questions.

 

Paul L.