Planning & EstimatingCâu 610 / 700
A painter rolls one coat at a rate of 150 square feet per hour. For a single coat on 3,000 square feet, what is the MINIMUM number of labor-hours to include in the estimate?
a.15 hours
b.20 hours
c.200 hours
d.45 hours
Giải thích
Labor-hours = area / production rate = 3,000 / 150 = 20 hours (b). Option (a) uses a 200 sq ft/hr rate. Option (c) multiplies instead of dividing (divides by 15 incorrectly). Option (d) uses a 66 sq ft/hr rate.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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