A Quincy activity has 720 units remaining. Each crew can install 24 units per day, and 2 crews are assigned. How many crew days are needed?
Correct Answer
B) 15.0 days
Crew days equal remaining quantity divided by daily rate per crew and number of crews.
Why This Is the Correct Answer
Crew days equal remaining quantity divided by daily rate per crew and number of crews.
Why the Other Options Are Wrong
Option A: 30.0 days
30.0 days is above the supported result for crew duration forecast; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option C: 48.0 days
48.0 days is above the supported result for crew duration forecast; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 17.0 days
17.0 days is above the supported result for crew duration forecast; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to controlling, adjust for remaining, then let Superintendent Forecasts set the finish line.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Principles and Practices of Commercial Construction, Crew planning and production forecasting; verify the trade cost, production, or field-control rule before answering.
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