A painter needs to cover the walls of four rooms In two coats of paint. Each room measures 4 ft by 8 ft, and the celling is 10 feet high in each. Each gallon of paint covers 32 square feet. How many gallons of paint does he need?

To determine how many gallons of paint the painter needs, let's break down the problem step by step. ### **1. Calculate the Perimeter of One Room** Each room has dimensions of 4 ft by 8 ft. - **Perimeter** = 2 × (Length + Width) = 2 × (4 ft + 8 ft) = 2 × 12 ft = **24 ft** ### **2. Calculate the Wall Area of One Room** The height of each room is 10 ft. - **Wall Area** = Perimeter × Height = 24 ft × 10 ft = **240 square feet** ### **3. Total Wall Area for Four Rooms** - **Total Wall Area** = 240 sq ft × 4 rooms = **960 square feet** ### **4. Account for Two Coats of Paint** - **Total Area to Paint** = 960 sq ft × 2 = **1,920 square feet** ### **5. Determine the Number of Gallons Needed** Each gallon covers 32 square feet. - **Gallons Needed** = Total Area ÷ Coverage per Gallon = 1,920 sq ft ÷ 32 sq ft/gallon = **60 gallons** ### **Conclusion** The painter will need **60 gallons of paint** to cover the walls of the four rooms with two coats.