If the set A has 3 elements and the set B = {3, 4, 5}, then find the number of elements in (A×B).
Number of elements in set A = 3
Number of elements in set B = 3
Number of elements in A×B=3×3=9
If set A has p element and set B has q elements, then the number of element in set (A × B) is _____.