选择题
2002 AMC 8 Problem 23: Fraction of Darker Floor Tiles
A corner of a tiled floor is shown. If the entire floor is tiled in this way and each of the four corners looks like this one, then what fraction of the tiled floor is made of darker tiles?
A.
1/3
B.
4/9
C.
1/2
D.
5/9
E.
5/8