A guest room is 8 meters long, 6 meters wide and 3 meters high. If you put beautiful wallpaper on the wall around the living room, excluding the door and window area 10 square meter, how much does it cost? Surrounding area =8*3*2+6*3*2- 10=74 (square meter)

Roof area =6*8=48 (m2)

Not attached to the roof: 74*30=2220 yuan

Sticking to the roof: (74+48)*30=3660 yuan

There may be a loss of about 5% when actually pasting.

If this is a math problem, don't think about it.