Question

The cost of fencing a circular field at the rate of Rs.24 per metre is Rs. 5280.

Find the radius of the field.
​

Answer 1

Step-by-step explanation:

For Rs.24, then length of fencing =1m

For Rs.52 so, the length of fencing

=

24

1

×5280=220meters

Circumference of the field =220m

2pr=220

Therefore r=

44

220×7

=35m

Area of the field =πr

2

π(35)

2

=1225

Cost of ploughing =Rs.0.50 per m

2

Total cost of ploughing the field =Rs.1225

=

7×2

1225×22×1

=Rs,1925.

Hence, the answer is 1925.

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