Mathematics, 14.12.2021 16:20 LilRed3223
in a school library, 10% of the fiction books and 15% of the non-fiction books are new. given that the ratio of fiction books to non-fiction books is 9:5 and that there are 660 new books, what is the total number of books in the library
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in a school library, 10% of the fiction books and 15% of the non-fiction books are new. given that t...
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