Question
In a group of 40 students, 22 study Mathematics, 18 study English, and 8 study both. How many study at least one subject?
Select an option. Your answer will be checked instantly.
Correct Answer: B. 32
Explanation:
Use n(M ∪ E) = n(M) + n(E) - n(M ∩ E).
Thus, 22 + 18 - 8 = 32.
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