A circular path of 16 m radius has marginal walk 3 m wide all round it. Find the cost of leveling the walk at Rs.2 per m2?  Select the correct option:  A) rs . 660  B) rs . 40  C) rs . 44  D) rs . 42  E) rs . 43

Rationale: explanation : π ( 19 ^ 2 - 16 ^ 2 ) = 22 / 7 * ( 361 - 256 ) = 330 330 * 2 = rs . 660 answer : option a
Answer: A