If a gallon (3.78 L)of latex paint can cover 365 ft² of the surface of a wall,what is the average thickness of one coat of paint (in millimeters)? (12 in = 1 ft,2.54 cm = 1 in) A) 1.11 × 10^-1 mm B) 2.83 × 10^-1 mm C) 4.64 × 10^-1 mm D) 4.89 × 10^-1 mm E) 3.40 mm

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Quizplus · Accepted Answer

First, convert the coverage area to square meters: $365 \, \text{ft}^2 = 365 \times (12 \times 2.54 \times 10^{-2})^2 \, \text{m}^2$. Then, divide the volume of paint (in cubic meters) by this area to find the thickness in meters, and finally convert to millimeters. The correct calculation leads to an answer in the order of $10^{-4}$ meters, or $10^{-1}$ millimeters, matching option A.

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