Question

The length of a rectangular plot of
land is 50 m and its width is 30 m.
A triple fence has to be put along its
edges. If the wire costs 60 rupees per
metre, what will be the total cost of the
wire needed for the fence?

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Answer 1

Step-by-step explanation:

Perimeter = 2(50+30) = 2(80) = 160m

Thus total cost = 160 × 60 × 3 = Rs.28800

Answer 2

Answer:

• The total cost of the wire needed for the fence is Rs 28800.

Step-by-step explanation:

Given that:

Dimensions of a rectangular plot,

• Length = 50 m
• Breadth = 30 m

To Find:

• What will be the total cost of the wire needed for the fence?

Finding the perimeter of the rectangular plot:

We know that.

Perimeter = 2(Length + Breadth)

⟶ Perimeter = 2(50 + 30)

⟶ Perimeter = 2 × 80

⟶ Perimeter = 160

∴ Perimeter of the rectangular plot = 160 m

Finding the total length of wire:

A triple fence has to be put along its edges.

• Total length to be fenced = 3 × 160 m
• Total length to be fenced = 480 m

∴ Total length of wire = 480 m

Finding the total cost of wire:

The wire costs 60 rupees per metre.

• 1 m of wire costs = Rs 60
• 480 m of wire costs = Rs (60 × 480)
• 480 m of wire costs = Rs 28800

∴ The total cost of the wire needed for the fence = Rs 28800