Find the cost of fencing around a circular field of diameter 70 m at the rate of Rs.1 a meter? Choose the correct choice
A) 288 B) 132 C) 220 D) 592 E) 261

Rationale: "2 * 22 / 7 * 35 = 220 220 * 1 = rs . 220 answer : c"
Answer: C