Planning & EstimatingCâu 633 / 700
On a drawing at 1/4 inch = 1 foot-0 inches, a wall measures 3 inches long on the paper. What is the actual length of that wall?
a.3 feet
b.12 feet
c.48 feet
d.9 feet
Giải thích
At 1/4 inch = 1 foot, each inch on the paper equals 4 feet (because 1 divided by 1/4 = 4). So 3 inches x 4 feet per inch = 12 feet. Correct answer is 12 feet. '3 feet' wrongly treats one inch as one foot. '48 feet' uses 16 feet per inch. '9 feet' has no valid basis.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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