Question

Mark buys two books for $74.75, with a discount of 18%. Find the regular price of the books and estimate it to the nearest whole number.

a.
$91

b.
$92

c.
$63

d.
$104

Answer 1

To find the regular price of the books before the discount, we can use the information given:

1. The total price after applying the discount is $74.75.
2. The discount rate is 18%, which means Mark paid 82% of the original price (100% - 18% = 82%).

Let's denote the original price of the books as \( P \).

Since Mark paid 82% of the original price, we can set up the equation:

\[
0.82P = 74.75
\]

To find \( P \), we can solve for it:

\[
P = \frac{74.75}{0.82}
\]

Calculating that:

\[
P \approx 91.1
\]

Rounding to the nearest whole number, we find:

\[
P \approx 91
\]

Thus, the regular price of the books is approximately $91.

The correct answer is:

**a. $91**