Question

I have to paint one side of a wall. The wall is 12 meters tall and 120 meters long. Each gallon of paint covers 150 square feet. 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?

Answer 1

11 gal

Explanation:

Area of wall in ft²:

12 m × 120 m × ft²/(0.3048² m²) = 1550.003 ft²

Number of gallons needed:

1550.003 ft² / (150 ft²/gal) = 10.33 gal

Answer: 11 gal