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?	Choose the correct choice from the following options:
A) Rs.45  B) Rs.78  C) Rs.44  D) Rs.40  E) Rs.55
Explanation:   π (152 - 132) = 176   176 * 1/4 = Rs.44   ANSWER IS Rs.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?