Bunuel wrote:
If the perimeter of a rectangular garden plot is 80 meters, which of the following could be the length of one of its sides?
I. 30 meters
II. 40 meters
III. 50 meters
(A) I only
(B) II only
(C) III only
(D) I and II
(E) II and III
If 80 is the perimeter, to find the limits, assume length L is the long side of the rectangle.
2L < 80 meters (or there wouldn't be width)
L < 40 meters
Only Option I, 30 meters, works.
Answer (A)