Find the cost of fencing around a circular field of diameter 22 m at the rate of Rs.2.50 a meter? Choose the correct choice from the following choices:
A) 188
B) 172
C) 278
D) 279
E) 222
2 * 22/7 * 11 = 69   69 * 2 1/2   = Rs.172   Answer: 172
<result>B</result>
Find the cost of fencing around a circular field of diameter 22 m at the rate of Rs.2.50 a meter?