Question
In the shop, 13 of the books sold were English books. 14 of the remaining books sold were Science books. The ratio of the number of Science books sold to the number of Chinese books was 9 : 7. The number of Math books sold was 180. How many books were sold altogether?
4 m

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In the shop, 13 of the books sold were English books. 14 of the remaining books sold were Science books. The ratio of the number of Science books sold to the number of Chinese books was 9 : 7. The number of Math books sold was 180. How many books were sold altogether?