Given that n(p) = 19, m(P ∪ Q) = 38 and n(P ∩ Q) =
MATHEMATICS
WAEC 2011
Given that n(p) = 19, m(P ∪ Q) = 38 and n(P ∩ Q) = 7, Find n(C)
- A. 26
- B. 31
- C. 36
- D. 50
Correct Answer: A. 26
Explanation
n(P \(\cup\) Q) = m(P \(\cap\) C)
38 = 19 = n(C) - 7
n(C) = 38 - 12
= 26
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