14. A field is in the form of a circle. The cost ofploughing the field – InterviewSolution

1.	14. A field is in the form of a circle. The cost ofploughing the field at R 15 per m2 is R 57,750.Find the cost of fencing the field at R 34 permetre.
Answer» find the area of field is 57750/15=3850m^2hence area is 3850m^2πr^2=3850r^2=3850/3.14=1226.11mr=35mhence circumference =2πr=23.1435=154mhence cost of fencing =154*34=5236rs

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