Question

Mason’s backyard deck is rectangular. The width is 12 feet less than the length. The perimeter of the deck is 64 feet. What is the length of the deck?

A.
10 feet

B.
22 feet

C.
26 feet

D.
38 feet

Answer 1

Let the length be L and the width be L − 12. Perimeter 2(L + (L − 12)) = 64 → 2(2L − 12) = 64 → 2L − 12 = 32 → 2L = 44 → L = 22.

Answer: B (22 feet).