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Of the 30 college students taking a certain course, 10 are less than 21 years old and 4 received a score higher than 85 percent on the last test.
Quantity A
The number of students who are less than 21 years old and who received a score higher than 85 percent on the last test
Quantity B
3
D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。
