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25 March, 11:00

There are 12 books on a shelf. 7of 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?

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  1. 25 March, 13:19
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    (a) What is the ratio of new books to used books?

    New books = 7

    Used books = 12 - 7 = 5

    Ratio = 7:5

    (b) What is the ratio of all books to used books?

    All books = 12

    Used books = 5

    Ratio = 12:5
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