Question

There are 16 books on a shelf. 9 of these books are new.
(a) what is the ratio of new books to used books?
(b) What is the ratio of all books to used books?

Answer 1

A: 9:5
B: 16:5 those should be the answer

Answer 2

Answer:

(a) 9:7

(b) 16:7

Step-by-step explanation:

(a) 16-9=7 used books = 9:7

(b) 16 books 7 used = 16:7