Question

The area of a rectangular plot is 270 sq.m and its length is 18 m. If the cost of fencing the park by wire is Rs.25 per metre, find the total cost of fencing. *

Answer 1

Solution

Given :-

• Area of rectangular park = 270 m²
• Length of rectangular park = 18 m
• coat of wire whose , fancing the park = ₹ 25 per m

Find :-

• Total cost of wire of fencing .

Explanation

Using Formula

$\dag\boxed{\underline{\tt{\blue{\:Area_{rectangular\:park}\:=\:(Length\times Breadth)}}}}$

$\dag\boxed{\underline{\tt{\orange{\: Perimeter_{rectangular\:park}\:=\:2\times (Length+Breadth)}}}}$

So, Now

==> Area of rectangular park = 270

==> Length × Breadth = 270

Keep Value of Length,

==> 18 × Breadth = 270

==> Breadth = 270/18

==> Breadth = 15 m

Now, Calculate perimeter of rectangular park

==> Perimeter of rectangular park = 2×(Length+Breadth)

==> Perimeter of rectangular park = 2 × (18 + 15)

==> Perimeter of rectangular park = 2 × (33)

==> Perimeter of rectangular park = 66 m

∵ Cost of fencing wire of 1 meter = 25

•°• Cost of fencing wire of 66 meter = 25 × 66

•°• Cost of fencing wire of 66 meter = ₹ 1650

Hence

• Total Cost of fencing wire will be = ₹ 1650

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Answer 2

Given :-

• Area of rectangular park = 270 m²
• Length of rectangular park = 18 m
• Coat of wire whose , fancing the park = ₹ 25 per m

To Find :-

• Total cost of wire of fencing

Explanation :-

Using Formula

$\large \bigstar\:\boxed { \underline {\tt {\blue {\: Area\:=\:(Length\times Breadth) }}}}$

➽ Area of rectangular park = 270

➽ Length × Breadth = 270

Keep Value of Length,

➽ 18 × Breadth = 270

➽ Breadth = 270/18

➽ Breadth = 15 m

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Now, Calculate perimeter of rectangular park

$\large \bigstar\:\boxed{\underline{\tt{\orange{\: Perimeter\:=\:2\times (Length+Breadth)}}}}$

➽ Perimeter of park = 2×(Length+Breadth)

➽ Perimeter of park = 2 × (18 + 15)

➽ Perimeter of park = 2 × (33)

➽ Perimeter of park = 66 m

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⇒ Cost of fencing wire of 1 meter = ₹ 25

⇒ Cost of fencing wire of 66 meter = 25 × 66

⇒ Cost of fencing wire of 66 meter = ₹ 1650

∴ Total Cost of fencing wire will be = ₹ 1650

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