Question

A door of breadth 1 m and height 2 m is fitted in a wall .The length of the wall is 4.5 m and the height is 3.6 m .Find the cost of white washing the wall ,if the rate of white washing the wall is ₹20 per m square.

Answer 1

Answer: The cost of white washing is Rs. 284.

Step-by-step explanation:

Since we have given that

Length of wall = 4.5 m

Breadth of wall = 3.6 m

So, Area of wall is given by

$Area=Length\times breadth\\\\Area=4.5\times 3.6\\\\Area=16.2\ m^2$

Length of door = 1 m

Breadth of door = 2 m

So, Area of door is given by

$Area=Length\times Breadth\\\\Area=1\times 2\\\\Area=2\ m^2$

Area of white washing the wall excluding the door = Area of wall - Area of door is given by

$16.2-2\\\\=14.2\ m^2$

Cost of per sq. m = Rs. 20

Total cost of white washing the wall is given by

$20\times 14.2\\\\=Rs.284$

Hence, the cost of white washing is Rs. 284.

Answer 2

Answer:

Please mark me as the brainliest...