alleryStart learning →If P = {1, 2, 3, 4, 5} and Q = {4, 5, 6, 7}, how many elements lie in P but not in Q?
A2
B4
C3
D5
Answer & Solution
Correct answer: C. 3
Removing the shared 4 and 5 from P leaves 1, 2 and 3.
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