Question

 A door length 2m and breadth 1m is fitted in wall. The length of the wall is 4.5m and the breadth is 3.6m, find the cost of white washing the wall, if the rate of white washing the wall is 30rs per m2.

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Answer 1

Answer:

Cost of white washing =14.2*20=284 rs

Answer:284 rs

Step-by-step explanation:

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

This is your answer...

Hope it helps you...

Answer 2

The length of the door = 2m

The length of the door = 2mThe breadth of the door = 1m

The length of the door = 2mThe breadth of the door = 1mThe area of the door = 2×1m²= 2m²

The length of the door = 2mThe breadth of the door = 1mThe area of the door = 2×1m²= 2m²The length of the wall = 4.5m

The length of the door = 2mThe breadth of the door = 1mThe area of the door = 2×1m²= 2m²The length of the wall = 4.5mThe breadth of the wall = 3.6m

The length of the door = 2mThe breadth of the door = 1mThe area of the door = 2×1m²= 2m²The length of the wall = 4.5mThe breadth of the wall = 3.6mArea of the wall = 4.5×3.6m² = 16.2m²

The length of the door = 2mThe breadth of the door = 1mThe area of the door = 2×1m²= 2m²The length of the wall = 4.5mThe breadth of the wall = 3.6mArea of the wall = 4.5×3.6m² = 16.2m²Area to be white washed = 16.2-2m²= 14.2m²

The length of the door = 2mThe breadth of the door = 1mThe area of the door = 2×1m²= 2m²The length of the wall = 4.5mThe breadth of the wall = 3.6mArea of the wall = 4.5×3.6m² = 16.2m²Area to be white washed = 16.2-2m²= 14.2m²The cost of white washing = 14.2×rs30= rs 426

The length of the door = 2mThe breadth of the door = 1mThe area of the door = 2×1m²= 2m²The length of the wall = 4.5mThe breadth of the wall = 3.6mArea of the wall = 4.5×3.6m² = 16.2m²Area to be white washed = 16.2-2m²= 14.2m²The cost of white washing = 14.2×rs30= rs 426Therefore, the cost of white washing is rs 426.