Problem:
Harry has sisters and brothers. His sister Harriet has sisters and brothers. What is the product of and
Answer Choices:
A.
B.
C.
D.
E.
Solution:
Since Harry has sisters and brothers, there are girls and boys in the family. So Harriet has sisters and brothers. The product of and is .
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions