Question

Ms Wharton bought some books at a book sale including 20 paperback books 80% of all the books she bought were paperbacks

Answer 1

For Apex: C, 25

Explanation:

Answer 2

Answer: 25 books.

Explanation:

Let as consider we need to find "how many books did Mr. Wharton buy in all?​"

Let total number of books bought by Mr. Wharton be x.

80% of all the books she bought were paperbacks.

`Paperbacks=x* (80)/(100)=0.8x`

It is given that the number of paperbacks is 20.

`0.8x=20`

Divide both sides by 0.8.

`x=(20)/(0.8)`

`x=25`

Therefore, Ms Wharton bought 25 books in all.