Joke Collection Website - News headlines - The school auditorium is 30m long, 20m wide and 4m high, with a door and window area of 120m2. Now the workers must paint the ceiling and the walls around the auditorium. Average cost per square meter

The school auditorium is 30m long, 20m wide and 4m high, with a door and window area of 120m2. Now the workers must paint the ceiling and the walls around the auditorium. Average cost per square meter

Ceiling area: 30*20=600m2

Surrounding area: (30+20) * 2 * 4-120 = 280m2.

Coating area =600+280=880m2

Coating dosage = 880 * 400 = 352000g.