Task# Double Discounts

Illustrative MathematicsVaries

The goal of this problem is to calculate percent decreases in the context of several (sequential) discounts. The task addresses a common misconception about successive discounts: many people think that a twenty percent discount on top of a thirty percent discount will result in a net fifty percent discount. One way to help see that this is not correct is to change the numbers. A 50 percent discount cuts the price in half.