Question

the length of square park is 45m and the width of flower - bed inside the park is 5m its boundary find the cost of paving it at rate of 20rs per m2
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Answer 1

Given:-

• The length of square park is 45m and the width of flower bed inside the park is 5m its boundary.

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To find:-

• The cost of paning it at rate of Rs.20 per m².

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Solution:-

According to the question,

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Firstly,

• Finding the area of square park.

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⇢ Area of square park = a × a

⇢ Area of square park = 45 × 45

⇢ Area of square park = 2025 m²

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Now,

⇢ Side of flower bed inside it = 45 - 5

⇢ Side of flower bed = 40 m

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Then,

⇢ Area of flower bed inside it = 40 × 40

⇢ Area of flower bed inside it = 1600 m²

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Now,

★ Cost of paining the square without width:-

⇢ 1600 × 20

⇢ Rs.32,000

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Hence,

• The cost of paning is Rs.32,000.