find the cost of putting a boundary wall around a rectangular plot 150m long and 79m50cm wide at the rate of Rs.10per m and 2m long stretch is left on one of the longer sides for entrance. Share with your friends Share 1 Manbar Singh answered this We have,Length of the plot = 150 mbreadth of the plot = 79 m 50 cm = 79.5 mNow, perimeter of the plot = 2length + breadth = 2150+79.5 = 2×229.5 = 459 mNow, length of the stretch left for entrance = 2 mSo, length of the boundary of the plot around which wall is constructed = 459 - 2 = 457 mcost of constructing 1 m boundary wall = Rs 10So, cost of constructing 457 m boundary wall = Rs10×457 = Rs 4570 -2 View Full Answer Mrinal Mittal answered this rs2295 0 Abhishek Bhartee answered this Perimeter of rectangular plot = 2(l+b)= 2( 150 + 79.5 )= 2 x229.5=459 mThe cost of 1 m = Rs 10So, the cost of 459 m = 459 x 10= Rs 4590But, 2 m long stretch left.So, the cost of 2 m = 2 x 10 = Rs 20The cost of boundary = 4590 - 20= Rs4570 2
