A librarian put 39 books back on the shelves before lunch. Of the books, 13 were non-fiction. What is the ratio of the number of
non-fiction books to the total number of books the librarian put away before lunch?
A. 1 to 2
B. 1 to 3
C. 3 to 1
D. 2 to 1
2 answers:
The anwser is 3to1 otherwise C
13:39=13/39
13/39=1/3
1/3=1:3
the answer is B
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