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2 years ago

The cost of carpeting a square room at Rs 25

Mathematics

1 answer:

Nezavi [6.7K]2 years ago

7 0

Answer: Areas = 139m²

Cost = Rs3475

Step-by-step explanation:

Area of a square wall of xm= xm².The area of the 4 walls = 4x²m²

Therefore, since the height = 6m, the other side = 6m, the area = 6x6=36m².

Area of the Four walls = 36m²x 4

= 144m². Biu the areas of the four walls excluding the door and window. Area of the door = 2m x 1m= 2m², and area of the window = 3m x 1m = 3m². Total area of the door and window = 2m² + 3m² = 5m².

Therefore, the total area of the four walls excluding the door and window = 144m² - 5m²

= 139m².

The amount required to carpeting the room will be

Let the number of square room carpeted at Rs25 which equals Rs8100 = xm²

Therefore, to know the number of square covered by this amount,= Rs8100/Rs25 = 324m²

If 324m² = Rs8100

1m² = 8100/324

139m²= 8100/324 x 139

= Rs3475

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