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主要内容

利润最大化

问题

B公司生产和销售贺卡。生产不同数量贺卡的边际成本以及赚取的边际收入见下表。
数, 量边际成本 left parenthesis, M, C, right parenthesis边际收入 left parenthesis, M, R, right parenthesis
1000dollar sign, 1, point, 00dollar sign, 3, point, 00
2000dollar sign, 1, point, 50dollar sign, 3, point, 00
3000dollar sign, 2, point, 00dollar sign, 3, point, 00
4000dollar sign, 2, point, 50dollar sign, 3, point, 00
5000dollar sign, 3, point, 00dollar sign, 3, point, 00
6000dollar sign, 3, point, 50dollar sign, 3, point, 00
7000dollar sign, 4, point, 00dollar sign, 3, point, 00
8000dollar sign, 4, point, 50dollar sign, 3, point, 00
9000dollar sign, 5, point, 00dollar sign, 3, point, 00
这家公司应该生产多少张贺卡才能获得最大的利润?
选出正确答案: