WAEC Mathematics 2014 Objective — Question 11
Question 11 of 50 from the West African Examinations Council (WAEC) Mathematics 2014 Objective paper, with the correct answer and a full explanation.
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If X={0,2,4,6} and Z={1,3} are subsets of U={x:0≤x≤6}, and Y={1,2,3,4}. Find X∩(Y′∪Z).
- A. {0,2,6}
- B. {1,3}
- C. {0,6}Correct
- D. { }
Explanation
Y′ (complement of Y in U) = {0,5,6}. Y′∪Z = {0,1,3,5,6}. X∩(Y′∪Z) = {0,2,4,6}∩{0,1,3,5,6} = {0,6}.
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