The area of a circular field is 13.86 hectares . The cost of fencing it at the rate of 20 paisa per meter is?

• A. Rs. 277.20
• B. Rs. 324
• C. Rs. 198
• D. Rs. 264

Answer: (D)

? 22/7 x r2 = 13.86 x 10000? r2 = (13.86 x 10000 x 7) / 22? r = 210 m ? Circumference = [2 x (22/7) x 210 ] m = 1320 m Cost of fencing = Rs. (1320 x 20)/100= Rs . 264