¶ 2011 AMC8 Problem 3
Problem:
Extend the square pattern of black and white square tiles by attaching a border of black tiles around the square. What is the ratio of black tiles to white tiles in the extended pattern?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
There are black tiles and white tiles in the extended pattern. So the ratio is .
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions