Find the area of four walls of a room having length, breadth and height as 8 m, 5 m and 3 m respectively. Find the cost of white-washing the walls at the rate of Rs. 15/m².

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Solution

We have

∴Area of the four walls,

Cost of white-washing the walls =

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Find the area of four walls of a room having length, breadth and height as 8 m, 5 m and 3 m respectively. Find the cost of white-washing the walls at the rate of Rs. 15/m2.

We have ∴Area of the four walls, Cost of white-washing the walls =

Find the area of four walls of a room having length, breadth and height as 8 m, 5 m and 3 m respectively. Find the cost of white-washing the walls at the rate of Rs. 15/m².

We have

∴Area of the four walls,

Cost of white-washing the walls =