A square wooden plaque has a brass inlay in the center, leaving a wooden strip of uniform width around the brass square. If the ratio of the brass area to the wooden area is 25 to 39, which of the following could be the width, in inches of the wooden strip?
I. 1
II. 3
III. 4
a. I only
b. II only
c. I and II only
d. I and III only
e. I, II, and III
No math is needed here.
Just use common sense.
Why couldn't the width of the strip be ANY value?
We could choose a width for the strip -- ANY width we want -- then shrink or expand the inlay until the ratio of inlay area:strip area = 25:39.
The correct answer is
E.
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