The length and breadth of a rectangular lawn are 36m and 20m respectively. It has two roads, each 3m wide and one parallel to the length and the other parallel to the breadth. What is the cost of gravelling the two roads at the rate of Rs. 3 per sq. metre ?

A

Rs. 471

B

Rs, 499

C

Rs. 459

D

Rs. 501

E

Rs. 477