Question

Mrs Tran had 17 fiction books and 11 nonfiction books in her classroom library. After she bought some more nonfiction books, Mrs Tran found that one-fourth of her library consisted of fiction books. How many nonfiction books did Mrs Tran buy?

Answer 1

I would say the answer is possibly 40

Answer 2

40

Explanation:

to make 17 a fourth multiply it by 4, = 68

the original number of books in the library was 28

68-28 = 40

40 = number of books added to make 17 a fourth