Question

If set A has p elements and set B has q elements, number of elements in set (A $\times$ B) is _____.

• A. p/q
• B. p^q
• C. p × q
• D. q^p

Answer 1

The correct option is C

p × q

Number of element in set A = n(A) = p
Number of element in A set B = n(B) = q
Number of element in set (A $\times$ B) = n(A $\times$ B)
n(A $\times$ B) = Number of elements in set A $\times$ Number of elements in set B = p $\times$ q