Length of a class room is two times its height and its breadth is `1 1/2` times its height. The cost of white-washing the walls at the rate of `R s .1.60\ p e r\ m^2` is `R s .179.20.` Find the cost of tiling the floor at the rate of `R s .6.75\ p e r\ m^2`

Length of a class-room is two times its height and its breadth is 1 1/2 times its height. The cost of white-washing the walls at the rate of R s .1.60p e rm^2 is R s .179.20. Find the cost of tiling the floor at the rate of R s .6.75p e rm^2dot

Length of a room is twice its height and its breadth is 1(1)/(2) times its height. The cost of white washing the walls at the rate of 32 per sq. m is * 3,584. Find the cost of tiling the floor of the room at 135 per sq. m.

A classroom is 7m long, 6m broad and 3.5m high. Doors and windows occupy an area of 17\ m^2dot What is the cost of white-washing the walls at the rate of Rs. 1. 50\ p e r\ m^2dot

The floor of a rectangular hall has a perimeter 250 m\ dot If the cost of painting the four walls at the rate of 10\ p e r\ m^2 is R s .15000. Find the height of the hall.

The length of a rectangular blackboard is 2 times its width. If the width is 1.4 m find its area. Also find the cost of painting the blackboard at the rate of rupes 75 per m^(2)

The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of R s\ 7. 50\ p e r\ m^2dot

The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four walls at the rate of R s\ 10\ p e r\ m^2 is Rs 15000, find the height of the hall.[Hint : Area of the four walls = Lateral surface area.]

A cylindrical pillar is 50cm in diameter and 3.5m in height. Find the cost of painting the curved surface of the pillar at the rate of Rs. 12. 50\ p e r\ m^2dot

The central hall of a school is 80m long and 8m high. It has 10 doors each of size 3m xx1. 6 m and 10 windows each of size 1. 5 m xx 1mdot If the cost of white-washing the walls of the hall at the rate of R s .1.20\ p e r\ m^2 is Rs. 2385.60, find the breadth of the hall.

The cost of fencing a circular field at the rate of Rs 24 per metre is Rs 5280. The field is to be ploughed at the rate of R s\ 0. 50\ p e r\ m^2 . Find the cost of ploughing the field .