MathematicsSetsWAEC
U = {1, 2, 3, ..., 10} and P is the set of multiples of 3 in U. Find n(P′).
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Answer: A. 7
P = {3, 6, 9}, so n(P) = 3 and n(P′) = 10 − 3 = 7.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.