Question

A door of dimensions 1m x 2.5m and a window of dimensions 4m x 2m are on the wall of dimensions 6m x 4m. Find the cost of panelling the wall if the rate of panelling is Rs.1500 per square meter..​

Answer 1

Answer:Given, Length of the room =5m

Breadth of the room =4m

Area of the room =5×4=20m

2

 

Also,

Length of the window =1.5m and

Breadth of the window =1m

Area of the window =1.5×1=1.5m

2

 

Now,

Length of the door =2.25m

Breadth of the door =1m

Area of the door =2.25×1=2.25m

2

 

Now,

area of the wall to be painted = Area of the room - (Area of the window +Area of the door)

=20−(1.5+2.25)

=20−3.75

=16.25m

2