Question
A library has a certain number of books. In December, the library bought 310 new books and 246 books were loaned out. In January, the library lost 360 books and loaned out 193 books, after which 3140 books were left. How many books were there in the library in the beginning of December?
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A library has a certain number of books. In December, the library bought 310 new books and 246 books were loaned out. In January, the library lost 360 books and loaned out 193 books, after which 3140 books were left. How many books were there in the library in the beginning of December?