Mathematics, 23.08.2020 16:01 traybrown0690

In a library, the ratio of maths books to science books is 3 : 2 and the ratio of science books to history books is 1 : 3. If the total number of books is 220, how many maths books are there?

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In a library, the ratio of maths books to science books is 3 : 2 and the ratio of science books to h...