Mary buys last year's best-selling novel, in hardcover, for $18.00. This is with a 25% discount from the original price. What was the original price of the novel?
a 25% discount means u paid 75% 75% of the original price is 18... 0.75x = 18.....with x being the original price x = 18 / 0.75 x = 24 <== the original price
Discount ⇒ 25% The price after discount ⇒ 100% - 25% = 75%
Solution: original price = percentage of original/percentage after discount × price after discount original price = 100%/75% × 18 original price = 100/75 × 18 original price = 4/3 × 18 original price = 24
