Question
In the book shop, 13 of the books sold were Chinese books. 15 of the remaining books sold were Math books. The ratio of the number of Math books sold to the number of English books was 4 : 3. The number of Science books sold was 104. How many books were sold altogether?
4 m

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In the book shop, 13 of the books sold were Chinese books. 15 of the remaining books sold were Math books. The ratio of the number of Math books sold to the number of English books was 4 : 3. The number of Science books sold was 104. How many books were sold altogether?