8. A door of length 2 m and breadth Im is fitted in a wall. The length

1.	8. A door of length 2 m and breadth Im is fitted in a wall. The length of hewall is 4.5 m and the breadth is 3.6 m (Figl1.6). Find the cost of whitewashing the wall, if the rate of white washing the wall is20 per m2
Answer» Area of door=21=2m^2 Area of wall= 3.64.5=16.2m^2 the area to be painted= area of wall-area of door=16.2-2=14.2m^2 ans.

8. A door of length 2 m and breadth Im is fitted in a wall. The length of hewall is 4.5 m and the breadth is 3.6 m (Figl1.6). Find the cost of whitewashing the wall, if the rate of white washing the wall is20 per m2

Answer»

Area of door=2*1=2m^2

Area of wall= 3.6*4.5=16.2m^2

the area to be painted= area of wall-area of door=16.2-2=14.2m^2 ans.