A model airplane is 8 inches long. If the actual airplane is 32 feet, find the scale of the model.

A. 8:1

B. 4 in. = 1ft

C. 1 in. = 4ft

D. 1:4

Here, the statement of equivalence is 8 inches = 32 feet, which can be reduced to 1 inch = 4 feet. Alternatively, this could be re-written as (1/4) inch = 1 foot.

Important: The key to solving this problem lies in recognizing that

"8 inches = 32 feet"

can be reduced.