Ashleigh represented the number of books she read last year on the bar graph below.

The bar graph titled Ashleigh’s books has type of book on x-axis and number of books read on y-axis from 0 to 50 in increments of 10. There are 20 mystery books, 50 non-friction books, 30 science-fiction books.

What is the ratio of non-fiction books to science-fiction books?

A.
3 to 7

B.
5 to 3

C.
3 to 5

D.
7 to 3

1 answer

To find the ratio of non-fiction books to science-fiction books, we first need to identify the number of each type of book Ashleigh read.

According to the information provided:

  • Non-fiction books: 50
  • Science-fiction books: 30

Now, we can express the ratio of non-fiction books to science-fiction books as follows:

\[\text{Ratio} = \frac{\text{Number of non-fiction books}}{\text{Number of science-fiction books}} = \frac{50}{30}\]

To simplify this ratio, we can divide both the numerator and the denominator by 10:

\[\frac{50 \div 10}{30 \div 10} = \frac{5}{3}\]

Thus, the ratio of non-fiction books to science-fiction books is \(5:3\).

The correct answer is: B. 5 to 3