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Mathematics for IGCSE & O level - Sets (Section 4)

1
Given A = {x | x is an even number} and B = {x | x is a prime number}, what is A ∩ B?
Answer
(A)
{2}
2
Given the following information in a Venn diagram, what does the shaded area represent? (Refer to the image for the Venn diagram)
Answer
(C)
P ∩ Q'
3
Which statement is correct regarding the cardinality of a set?
Answer
(B)
Cardinality refers to the number of elements in a set.
4
What does the notation n(A) mean?
Answer
(C)
The number of elements in set A
5
If A' ∪ A equals the universal set U, what does A ∩ A' equal?
Answer
(C)
{}