The floor of a room is in the shape of a square. If the length of one of its side is 4 m, then find the cost of carpeting the room at the rate of ₹ 40 per square meter.

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Solution

Given, side of square = 4 cm
$\Rightarrow$ Area of a square = Side $\times$ Side
= 4 m $\times$ 4 m
= $16 m^{2}$

Cost of carpeting 1 sq m of a room = ₹ 40
Cost of carpeting 16 sq m
$= 40 \times 16 = ₹ 640$
Therefore, total cost of carpeting = ₹ 640

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The floor of a room is in the shape of a square. If the length of one of its side is 4 m, then find the cost of carpeting the room at the rate of ₹ 40 per square meter.

Given, side of square = 4 cm ⇒ Area of a square = Side × Side = 4 m × 4 m = 16 m2 Cost of carpeting 1 sq m of a room = ₹ 40 Cost of carpeting 16 sq m =40×16=₹ 640 Therefore, total cost of carpeting = ₹ 640

Given, side of square = 4 cm
$\Rightarrow$ Area of a square = Side $\times$ Side
= 4 m $\times$ 4 m
= $16 m^{2}$

Cost of carpeting 1 sq m of a room = ₹ 40
Cost of carpeting 16 sq m
$= 40 \times 16 = ₹ 640$
Therefore, total cost of carpeting = ₹ 640