The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four walls at the rate of Rs 10 per `m^2` is Rs 15000, find the height of the hall.
If the cost of fencing a square plot at the rate of Rs. 2.50 per m is Rs. 300. Then find the length of each side of the field.
The length, breadth and height of a room is 5m, 4m and 3m. The cost of white washing its four walls at the rate of Rs 7.50 per m^2 is :
It costs Rs 2200 to paint the inner curved surface of a cylindrical vessel 10 m deep. If the cost of painting is at the rate of Rs 20 per m^2 , find radius of the base.
It costs Rs 2200 to paint the inner curved surface of a cylindrical vessel 10 m deep. If the cost of painting is at the rate of Rs 20 per m^2 , find capacity of the vessel.
The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find the cost of plastering this curved surface at the rate of Rs 40 per m^2 .
The area of field which is circular is 3218 2/7 m^2 . Find the cost of fencing the field at the rate of Rs. 14 per metre
Length of a room is 1 1/3 times its breadth and its height is 1/2 times its length. The cost of white washing the walls at the rate of Rs 2.60per m^2 is Rs 291.20. find the cost of tiling the floor at the rate of Rs 8 per m^2 .
It costs Rs 2200 to paint the inner curved surface of a cylindrical vessel 10 m deep. If the cost of painting is at the rate of Rs 20 per m^2 , find inner curved surface area of the vessel.
NAND LAL PUBLICATION-SURFACE AREAS AND VOLUMES-Exercise 13.9
