Question

dimensions of a room are 12 metre * 8 metre * 6 metre find the cost of whitewashing its four walls and ceiling​

Answer 1

Answer:

Area of walls=

12(length)*6(height)*2(opp walls are of same dimensions. So multiplied by two) =144

Similarly other two opposite walls =8*6*2=96

Area of ceiling=8(breadth)*12(length)=96

Total area=96+96+144=336

Cost of whitewashing = 336*cost of painting unit area

Answer 2

2(lb+bh+hl)×cost of white wash per meter square