A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?  Select
A) 22  B) 77  C) 44  D) 88  E) 12
π (152 - 132) = 176   176 * 1/4 = Rs.44   Answer: 44
<result>C</result>
A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?