The ceiling of a building, 18 meters by 15 meters, is to be painted. How many gallons of paint are required for this ceiling if a gallon can cover 15 square meters?
Question
The ceiling of a building, 18 meters by 15 meters, is to be painted. How many gallons of paint are required for this ceiling if a gallon can cover 15 square meters?
Solution
Step 1: Calculate the area of the ceiling. The area of a rectangle is given by the formula length x width. So, the area of the ceiling is 18 meters x 15 meters = 270 square meters.
Step 2: Determine how many square meters a gallon of paint can cover. According to the problem, a gallon of paint can cover 15 square meters.
Step 3: Divide the total area of the ceiling by the area that a gallon of paint can cover to find out how many gallons are needed. So, 270 square meters ÷ 15 square meters/gallon = 18 gallons.
Therefore, 18 gallons of paint are required to paint the ceiling.
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