Question

Which pair of sneakers has the lowest sale price?



15% off $30

20% off $35

10% off $29

30% off $38

Answer 1

Every price is discounted.
The original price is 100% of the price.

Here's how you do this quickly using the first choice as an example.
When you discount the original price 15%, you are subtracting 15% of the price from 100% of the price. That means you will be paying 100% - 15% = 85% of the price. Then to find the price, you need to calculate 85% of $30 = 0.85 * 30.

Do the same for the other choices, and find the lowest price.