Question

a door of length 2 metre and breadth per metre is fitted in wall the length of the wall is 4.5 metre and the breadth is 3.6 find the cost of whitewashing the ball if the rate of whitewashing the wall is rupees 20 per metre square​

Answer 1

Answer:

Cost of white washing =Rs.284

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=Rs.284

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