Question

The perimeter of the floor of a hall is 400 m if the height is 6 m find the cost of painting the four walls at the rate of.. Rs10 per sqr m

Answer 1

Area to be covered = (perimeter of base) x height
                              = 400 x 6
                              = 2400
Cost of 1 m^2 = 10
Cost of 400 m^2 = 2400 x 10
                          = 24,000 Rs

Answer 2

Area to be covered = (perimeter of base) x height

                              = 400 x 6

                              = 2400

Cost of 1 m^2 = 10

Cost of 400 m^2 = 2400 x 10

                          = 24,000