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A square shaped garden needs to be fenced with two rounds of rope. If the side of the garden is $$35\ \text{m}$$ and the cost of the rope is Rs. 2 per meter, then the total cost of rope used for fencing will be
The perimeter of the square garden is $$4 \times 35 = 140\ \text{m}$$. Two rounds of rope need $$2 \times 140 = 280\ \text{m}$$ of rope. At Rs. 2 per metre, the cost is $$280 \times 2 = 560$$ rupees.
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