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The ratio of the number of Mathematics books to the number of Science books in a bookshop is 9 : 4. If there are 72 Science books in the bookshop, how many Mathematics books are there in the bookshop ?
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The ratio of the number of Mathematics books to the number of Science books in a bookshop is 9 : 4. If there are 72 Science books in the bookshop, how many Mathematics books are there in the bookshop ?

User Ed Schwehm
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1 Answer

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72/4 = 18

18 x 9 = 162 maths books
User Christian Pekeler
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