Each gallon of paint covers 200 square feet. I have to paint one side of a wall that is 12 meters tall and 80 meters long. If a foot is approximately 0.3048 meters, then what is the smallest whole number of gallons I can buy and have enough paint to cover the whole wall?

Thx

Guest Mar 15, 2021

#2**0 **

The wall is 12*80 = 960 m^2. This converts to 960/0.3048 = 3150 square feet, so the number of gallons needed is 3150/200 = 15.74, which rounds up to 16.

Guest Mar 15, 2021

#4**0 **

The total surface area to paint = 12 m * 80 m = 960 square meters

1 ft ≈ 0.3048 m

1 ft^{2} ≈ 0.09290304 m^{2}

200 ft^{2} ≈ 18.580608 m^{2}

And so one gallon of paint covers about 18.581 square meters.

960 m^{2} / ( 18.581 m^{2} per gallon) ≈ 51.67 gallons

So 51 gallons would not be enough... it would take 52 gallons of paint to cover the wall.

(Note to previous answerer: 960 m^{2} ≈ 10333.354 ft^{2} ≉ 3150 ft^{2})

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hectictar Mar 15, 2021