classroom is 20 m long, 15 m wide, and 3 m high. four windows (2m by 3m) and a door (2m by 1m). What is the cost of providing air conditioning for this classroom at $60

Answer 1

per square meter?

First, we need to calculate the area of the classroom:

- Area of floor = length x width = 20m x 15m = 300 square meters
- Area of walls = 2 x (length x height) + 2 x (width x height) = 2 x (20m x 3m) + 2 x (15m x 3m) = 120 square meters
- Area of windows = 4 x (2m x 3m) = 24 square meters
- Area of door = 1 x (2m x 1m) = 2 square meters

Total area = floor area + wall area - window area - door area = 300 + 120 - 24 - 2 = 394 square meters

The cost of air conditioning would be:

Cost = area x cost per square meter = 394 x $60 = $23,640

Therefore, the cost of providing air conditioning for this classroom would be $23,640.