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In a group of 150 people, 40 percent are older than 60 years and 80 percent are employed.Which of the following could be the number of people who are both employed and older than 60 years?
Indicate all such numbers.
C,F,E显示答案
· 相关考点
6.1.4 双集合交并集的最大与最小
6.1.4 双集合交并集的最大与最小
以上解析由 考满分老师提供。
