Question

A room is 15 m long and 9 m broad. Find the cost of carpeting the room with a carpet 75 cm wide at the rate of 10 per metre.​

Answer 1

Given:-

• A room is 15 m long and 9 m broad.
• A carpet of a room is 75 cm wide at the rate of Rs.10 per metre.

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To find:-

• Cost of a carpeting of a room at the rate of 10 per metre.

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Solution:-

Here,

• Length (l) = 15 m = 1500 cm
• Broad (b) = 9 m = 900 cm

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According to the question

★Formula used:-

Area of rectangle = length × breadth

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⇛ l × b

⇛ 1500 × 900

⇛ 1350000 cm²

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Now,

• finding the cost of carpeting of a room.

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⇛ 1350000\900

⇛ Rs.1800

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Hence,

• the cost of carpeting of a room is Rs.1800.