Find the cost of fencing around a circular field of diameter 40 m at the rate of Rs.3 a meter?
Answers:  A) 400  B) 370.4  C) 376.98  D) 340.9  E) 350.03
2 * 22/7 * 20 = 125.66   125.66 * 3= Rs.376.98   Answer: 376.98
<result>C</result>
Find the cost of fencing around a circular field of diameter 40 m at the rate of Rs.3 a meter?