Question

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?

Answer 1

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

Answer 2

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

The original price was $24.00