选择题
2011 AMC 8 Problem 3: Black Border Tiles
Extend the square pattern of 8 black and 17 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?
A.
8:17
B.
25:49
C.
36:25
D.
32:17
E.
36:17