Neco 2021 Mathematics Question 6
Practice objective / multiple choice question 6 from the 2021 Neco Mathematics examination.
In a school of 120 students, let \(A\) be the set of students who study Mathematics, \(B\) those who study Physics and \(C\) those who study Chemistry. It is known that \(|A| = 70\), \(|B| = 60\), \(|C| = 50\), \(|A \cap B| = 30\) and \(|A \cap C| = 25\). The number of students who study exactly two of the three subjects is 45. Find the number of students who study all three subjects.
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About This Question
This is Neco 2021 Mathematics Question 6. It is one of the objective questions from the 2021 Neco Mathematics examination.
Difficulty level: Medium .
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