There are 13 books on a shelf. 5 of these books are new. The rest of them are used.(a) What is the ratio of all books on the shelf to used books?8(b) What is the ratio of new books to used books?
Question
There are 13 books on a shelf. 5 of these books are new. The rest of them are used.(a) What is the ratio of all books on the shelf to used books?8(b) What is the ratio of new books to used books?
Solution
(a) The total number of books on the shelf is 13. Out of these, 5 are new. Therefore, the number of used books is 13 - 5 = 8. The ratio of all books to used books is therefore 13:8.
(b) The number of new books is 5 and the number of used books is 8. Therefore, the ratio of new books to used books is 5:8.
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