How do you solve this word problem?

Question

There are 66 books in the Bible and 39 of these books are in the Old Testament? What percent of the Bible is comprised of New Testament books?

Answer 1

This is a percentage problem.

There are 66-39 = 27 New Testament books.

So the New Testament books percentage is:

27/66 * 100 = 40.9 %

Which is 41% when rounded to nearest whole number.