Mathematics, 30.12.2019 22:31 ayoismeisalex
There are 500 people in a survey to answer two yes-or-no questions, for the first question, 440 people has a "yes" answer, for the second question, 220 people has a "yes" answer, k is the number of people that has two "yes" answers, what’s the minimum value of k?
Answers: 1
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There are 500 people in a survey to answer two yes-or-no questions, for the first question, 440 peop...
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