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In a survey, 400 people answered either yes or no to each of 2 questions. There were 340 people who answered yes to the first question,180 people who answered yes to the second question, and n people who answered yes to both questions. Which of the following could be the value of n?
Indicate all such values.
B,C,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。
