A drywall area is 780 square feet and material is $2.10 per square foot. What cost is estimated before waste?
Correct Answer
C) $1,638.
The cost is 780 x $2.10 = $1,638.
Why This Is the Correct Answer
The cost is 780 x $2.10 = $1,638.
Why the Other Options Are Wrong
Option A: $1,560 total.
$1,560 total. is below the supported result for drywall material cost calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: $1,600 total.
$1,600 total. is below the supported result for drywall material cost calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option D: $1,720 total.
$1,720 total. is above the supported result for drywall material cost calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Drywall Material Cost cart for Estimating Area: dollars first, title second, whole units last.
Reference Hint
Study anchor (closed-book): memorize Drywall material cost calculation from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code gypsum board quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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