Question

The cost of fencing a circular field at the rate of Rs. 12 per metre is Rs. 2640. Findthe diameter of

the field.​

Answer 1

Answer:

ANSWER

Circumference of the field =

12

1320

=110m

If the radius of the field is R, then 2×

7

22

×r=110

⇒r=

2

35

m

Now, Area of the field =

7

22

×

2

35

×

2

35

=

2

1925

m

2

Cost of ploughing the field at Rs.2 per m

2

=

2

1925

×2=Rs.1925

Step-by-step explanation:

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