Neco 2018 Mathematics Question 23
Practice objective / multiple choice question 23 from the 2018 Neco Mathematics examination.
In the Venn diagram shown, the universal set contains \(50\) elements. The numbers of elements are: \(|A| = 20\), \(|B| = 25\), \(|C| = 18\); \(|A \cap B| = 12\), \(|B \cap C| = 8\), \(|A \cap C| = 5\), and \(|A \cap B \cap C| = 3\). How many elements are in none of the three sets?
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About This Question
This is Neco 2018 Mathematics Question 23. It is one of the objective questions from the 2018 Neco Mathematics examination.
Difficulty level: Medium .
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