A rectangular plot of land is 300m long and 250 m broad. it has two roads, each 3m. wide running midway within it, one parallel to the length and other parallel to the breadth .find the area of road also calculate the cost of constructing road at rs.50 per. sq. m. please give me the solution as fast as possible and of same ques. plx. dnt give me any link just solve evrything in steps .