A square field has an area of 1.21 hectares. Taking 1 hectare = 10000 m², what is the cost of fencing it at Rs. 15 per metre?
Correct answer B. Rs. 6600
Explanation
1.21 hectares = 12100 m², so the side = √12100 = 110 m. Perimeter = 440 m and cost = 440 × 15 = Rs. 6600.
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