Question
In the store, 15 of the books sold were Math books. 13 of the remaining books sold were Chinese books. The ratio of the number of Chinese books sold to the number of Science books was 8 : 7. The number of English books sold was 81. How many books were sold altogether?
4 m

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In the store, 15 of the books sold were Math books. 13 of the remaining books sold were Chinese books. The ratio of the number of Chinese books sold to the number of Science books was 8 : 7. The number of English books sold was 81. How many books were sold altogether?