Mathematics, 31.12.2020 23:10 angellynn50
After the announcement of a sale, a bookstore sold 1/2 of all its books in stock. On the following day, this bookstore sold 4,000 more books. Now only 1/10 of the number of books in stock before the sale remain in the store. How many books were in stock before the announcement of the sale?
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After the announcement of a sale, a bookstore sold 1/2 of all its books in stock. On the following d...
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