3Cost of ploughing at the rate of Rs. 10 per m2 is Rs. 1,540. Find the – InterviewSolution

1.	3Cost of ploughing at the rate of Rs. 10 per m2 is Rs. 1,540. Find theradius of the circular field.
Answer» Area of circular field = 1540/10 = 154Area of circle = πr²154 = 22/7 × r²49 = r²7 = r

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