Question

A hall has 4 windows, each 4 m wide and high,2 doors each 2.5 m tall and 2m wide,and 3 wall closests, each 2.5m tall and 1m wide.If a hall is 20m long, 18m wide, and 6m high, find the cost of painting it's wall at 38 per m²

Answer 1

area of windows = 64

area of doors = 18

area of three closest wall = 15

total area = 97

area of room = 2h(l+w) = 4320

area of painting = 4320-97 = 4123

cost = 4123 × 38 = 156674