Problema Solution
A classroom measures 32 ft long, 25 ft wide, and 9 ft high. The combined area of doors and windows is 140 ft. What is the remaining area of the four walls of the room?
Answer provided by our tutors
the total area of the 4 walls together with the doors and windows is
2(32*9 + 25*9) = 1026 ft^2
the remaining area of the four walls is 1026 - 140 = 886 ft^2.