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During Christmas a book store sold 30 books. If the ratio of books go bookmarks sold was 10:1 ,how many bookmarks did the store sell?

Answer :

alexak
books to bookmarks
books : bookmarks
10 : 1
10 * 3 : 1 * 3
30 : 3
3 bookmarks

Since the book store sold 30 books they also sold 3 bookmarks.

Answer: 3 bookmarks

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