The school librarian organize my nonfiction fiction books for every 3 nonfiction book there are 7 fiction books What is the total number of books if there are 240 nonfiction books?

Answer 1

For this question, we can create a pair of equivalent ratios and use them to determine the total number of books.

The ratio of nonfiction to fiction can be written as:

3/7

Since there are 3 nonfiction for every 7 fiction, we can multiply this ratio by 80/80 to determine the number of fiction books:

3/7 * 80/80 = 240 / 560

Therefore, there are 560 fiction books for 240 nonfiction. The total number of books would be the sum of these or :

240 + 560 = 800 books