问题 单项选择题

A square countertop has a square tile inlay in the center, leaving an untiled strip of uniform width around the tile. If the ratio of the tiled area to the untiled area is 25 to 39, which of the following could be the width, in inches, of tile strip
Ⅰ.1
Ⅱ.3
Ⅲ.4

A.Ⅰ only

B.Ⅱ only

C.Ⅰ and Ⅱ only

D.Ⅰ and Ⅲ only

E.(E) Ⅰ, Ⅱ, and Ⅲ

答案

参考答案:E

实验题
单项选择题