实在是困扰的GMAT数学题
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 is 25 to 39, which of the following could be the width, in inches, of the strip?(1).1 (2).3 (3).4a.(1)only b.(2)only c.(1) and (2) only d. (1) and (3) only e. (1), (2), (3)
