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?	Choices.
A) Rs.660 B) Rs.40 C) Rs.44 D) Rs.42 E) Rs.43
Explanation:   π (19^2 - 16^2) = 22/7 * (361-256)= 
<gadget id="calculator">22/7 * (361-256)</gadget>
<output>330</output>
330   330 * 2= Rs.660   Rs.660nswer: Option Rs.660
<result>A</result>
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?