>>The cost of ploughing a circular field at the rate0.75 per m^2is rs. 4158
fencing the field at the rate of 30 per meter.
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Answer:
Cost of fencing a circular field
= Perimeter × Rate
6600 = 2πr × 30
r = 110/π
Area to be ploughed
= area of a circle
= 2πr^2
= 2×π×110×110/π×π
= 12100 × π × 2
= 24200 π
Cost of ploughing the field
= Area of the field×Rate
= 24200π × 1.50
= 2420×15×22/7
= Rs. 114085.71
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