Mathematics WAEC / WASSCE 1991 Sets, Logic & Venn Diagrams
P = {2, 1,3, 9, 1/2}; Q = {1,21/2,3, 7} and R = {5, 4, 21/2}. Find P∩Q∩R
A
(21/2)
B
∅
C
(1, 3, 7)
D
(4)
E
(5,7,9)
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