1.

>>The cost of ploughing a circular field at the rate0.75 per m^2is rs. 4158fencing the field at the rate of 30 per meter.​

Answer»

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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