Question

you saved $ 2.00 on a coupon for a box of cereal . the original price of the box of cereal costs $5.00 , what percent is the coupon ?

Answer 1

The original cost of the cereal box is $5.00 → this represents a 100% of the price

You saved $2.00 by using a coupon, to determine the % of discount this coupon represents you can use cross multiplication:

If $5 represents 100%

$2 represents x%

Where:

$\begin{gathered} \frac{100}{5}=\frac{x}{2} \\ x=(\frac{100}{5})\cdot2 \\ x=40 \end{gathered}$

The coupon represented a 40% discount on the cereal box.