During the buyout verification pass at the senior-center activity hall, the shower wall area for cement backer board is 5160 SF. With 7% waste and 15 SF per sheet or panel, how many sheets are required?
Correct Answer
C) 369 sheets
Sheet count equals area with waste divided by coverage per sheet or panel, rounded up.
Why This Is the Correct Answer
Sheet count equals area with waste divided by coverage per sheet or panel, rounded up.
Why the Other Options Are Wrong
Option A: 344 sheets
344 sheets is below the supported result for cement backer board; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 184 sheets
184 sheets is below the supported result for cement backer board; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 373 sheets
373 sheets is above the supported result for cement backer board; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Cement cart for Carpenter Checks: sheet first, count second, whole the controlling choice last.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Tile substrate; board coverage; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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