Question

The cost of fencing a circular field at the rate of 240 per metre is 52800/-

Answer 1

the cost of fencing rate =240

52800

52800×240

1. =12672000

Answer 2

Answer:

Let radius of field is r meter

circumference of the field will be 2πr

Now the cost of fencing the circular field is 52,800 at rate of 240 rupees per meter

2πr . 240 = 52800

r = 52800

r= 35

Thus the radius of the field is 35 meter

Now the area of the field will be

π r² = (22/7) . 35²

= 3850 m²

Thus the cost of ploughing the field will be

3850 × 12.5 = 48,125 rupees