Question

Seth buys last year's best-selling novel, in hardcover, for $17.85 $⁢17.85 . This is with a 15% 15% discount from the original price. What was the original price of the novel?

Answer 1

$21.00

let the original price = 100%

then the discount price = 100 - 15 = 85%

divide $17.85 by 85 to obtain 1% then multiply by 100 to obtain original price.

original price = $17.85 × $\frac{100}{85}$ = $21

Answer 2

Answer:

The original price of the novel is $ 21.

Step-by-step explanation:

Let x be the original price of the novel,

Discount percentage = 15%,

The amount of discount = 15% of the original price of the novel

= 15% of x

$=\frac{15x}{100}$

= 0.15x

Thus, the price of the book after discount = x - 0.15x

= 0.85x

According to the question,

0.85x = 17.85

$\implies x = \frac{17.85}{0.85}=21$

Hence, the original price of the novel is $ 21.