Question

A door of length 2m and breadth 1m is fitted in a 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 Rs. 20 per square meter

Answer 1

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...

Please follow me on brainly and mark me as the brainest answer

Answer 2

Answer:

284

Step-by-step explanation:

Area of Door= length×breadth = 2×1= 2 m²

Area of Wall= length × breadth = 4.5×3.6= 16.2 m²

Area of Wall= 16.2 - 2 = 14.2m²

cost of Wall washing= ₹20×14.2= ₹284/m²