Problem: a rectangular lawn of dimensions 80 m * 40 m has two roads each 10 m wide running in the middle of the lawn , one parallel to the length and the other parallel to the breadth . what is the cost of traveling the two roads at rs . 3 per sq m ? 
Options: a ) 2288 , b ) 2779 , c ) 3300 , d ) 3900 , e ) 2781
c