karen1102 karen1102

26-03-2015
Mathematics

Answered

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?

Answer :

26-03-2015

(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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