A repaint estimate must cover 2,100 square feet twice, and each gallon covers 300 square feet per coat. How many gallons are needed before attic stock?
Correct Answer
D) 14 gallons.
Two coats require 2,100 × 2 = 4,200 square feet of coverage. Divide by 300 square feet per gallon: 4,200 ÷ 300 = 14 gallons. Twelve or thirteen gallons are insufficient at the stated coverage; fifteen exceeds the calculated requirement. Extra stock is excluded.
Why This Is the Correct Answer
Two coats require 2,100 × 2 = 4,200 square feet of coverage. Divide by 300 square feet per gallon: 4,200 ÷ 300 = 14 gallons. Twelve or thirteen gallons are insufficient at the stated coverage; fifteen exceeds the calculated requirement. Extra stock is excluded.
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