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Question

If set A has p elements and set B has q elements, then the number of elements in set A×B is .

A
Pq
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B
pq
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C
p×q
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D
qp
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Solution

The correct option is C p×q

Number of elements in set A n(A) =p

Number of elements in set B n(B) = q

Number of elements in set (A × B) is given by

n(A × B) = Number of elementa in set A × Number of elements in set B = p×q


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