Find the cost of fencing a square garden whose each side is 12 m long and cost of fencing is ₹ 2.5/m.

₹ 100

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₹ 110

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₹ 120

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₹ 240

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Solution

The correct option is C ₹ 120
The perimeter of a square is given by 4a, where a is the length of each side of the square.
Hence, perimeter = 4 $\times$ 12 = 48 m
Therefore, the cost of fencing
= 48 m $\times$ ₹ 2.5 /m = ₹ 120

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