Question

door of length 2 metre all breadth one metre is fitted in a wall the length of the wall is 4.5 metre and the
beadth is 3.6 metre find the cost of white was the wall if the rate of white was the wall is rupees 20 per metre square​

Answer 1

Dimensions of the door..

Length =2 m

Breadth =1 m

Area of the door =2*1 =2 m²

Dimensions of the wall...

Length =4.5 m

Breadth =3.6 m

Area of the wall =4.5*3.6=16.2 m²

Area for white washing =area of the wall- area of the door

=) 16.2-2=14.2 m²

Given cost per m²=20 rs

Cost of white washing =14.2*20=284 rs