Answer:
15.833 pints of chalkboard paint
Step-by-step explanation:
Surface area of a rectangular prism = 2(lw × hl × hw)
Where,
L = length = 15 feet
w = Width = 13 feet
h = height = 10 feet
Surface area of a rectangular prism = 2(lw + hl + hw)
= 2(15*13 + 10*15 + 10*13)
= 2(195 + 150 + 130)
= 2(475)
= 950 square feet
One pint of chalkboard paint covers 60 square feet
Least number of pints needed to paint the walls = 950 square feet / 60 square feet
= 15.833 pints of chalkboard paint
