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Question

What is the cost of fencing a square shaped plot of land with side length 25 metres, if the rate of fencing is ₹ 9 per metre ?

A
₹ 1,000
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B
₹ 9,000
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C
₹ 1,900
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D
₹ 900
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Solution

The correct option is D ₹ 900
Fencing is always done on the boundary of the plot of land .

Given, length of the square plot of land = 25 m

Perimeter of the plot of land = 4 x Side
= 4 x 25 m
= 100 m

Given, cost of fencing 1 metre of land = ₹ 9

So, total cost of fencing = Cost of fencing per metre x Total length of boundary of the plot (perimeter of the plot )
Cost of fencing 100 m
= 9 x 100
= ₹ 900

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