Planning & Estimating第 77 / 100 题
To estimate labor, a painter uses a production rate. If one painter coats 150 sq ft per hour and the job is 1,200 sq ft for one coat, how many labor-hours are needed?
a.4 hours
b.6 hours
c.8 hours
d.12 hours
解析
Labor-hours equal area divided by production rate: 1,200 / 150 = 8 hours for one coat. Additional coats, prep, and setup add more hours. Accurate production rates from experience are the basis of a reliable labor estimate.
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