The dimensions of a room are `20 ftxx 15 ftxx 12ft`. Find the cost of painting the walls of the room at rupees 20 per sq. ft.

The dimensions of a room are 5mxx4mxx3m . Find the cost of white washing the walls of the room and the ceiling at the rate of Rs 11.5 per m^2 .

The Dimensions of a room are 8mx6m xx4m. Find the cost of white washing the four wall room at Rs.10 per sq.m.

The dimensions of a class room are 15 ft xx 10 ft xx 11 ft. The area of four walls is ______.

The dimensions of a room are 12 m xx 7m xx 5m. Find the diagonal of the room. (b) the cost of flooring at the rate of Rs. 2 per m^(2) . (c ) the cost of whitewashing the room excluding the floor at the rate of Rs. 3 per m^(2) .

The dimensions of a shop are 12 ft xx 8 ft xx 5 ft. The area of four walls is _______

A door of dimensions 3m xx2m is on the wall of dimension 10m xx10m* Find the cost of painting the wall if rate of painting is Rs 2.50 per sq*m .

The dimensions of a class room are 10m, 8m, and 5m. Find the cost of decorating its walls by a wall paper of 1 m width, which costs rs. 50 per metre.