The front compound wall of a house is decorated by wooden spheres of diameter 21 cm, placed on small supports as shown in Fig 13.32. Eight such spheres are used for this purpose, and are to be painted silver. Each support is a cylinder of radius 5cm and height 7cm and is painted black.Find the cost of paint required if silver paint cost 25 paisa per `cm^2` and black paint cost 5 paisa per `cm^2`

The front compound wall of a house is decorated by wooden spheres of diameter 21 cm, placed on small supports as shown in Fig 13.32. Eight such spheres are used for this purpose, and are to be painted silver. Each support is a cylinder of radius 1.5cm and height 7cm and is painted black.Find the cost of paint required if silver paint cost 25 paisa per cm^2 and black paint cost 5 paisa per cm^2

The front compound wall of a house is decorated by wooden spheres of diameter 21 cm, placed on small supports as shown in the given figure. Eight such spheres are used for this purpose, and are to be painted silver. Each support is a cylinder of radius 1.5 cm and height 7 cm and is to be painted black. Find the cost of paint required if silver paint costs 25 paise per cm^(2) and black paint costs 5 paise per cm^(2) .

Percentage of silver in silver paint is

What is silver paint?

Find the cost of painting a cuboid of dimensions 20 cm xx 15 cm xx 12 cm at the rate of 5 paisa per square centi meter.

The sides of a triangle shaped sheet are 5cm, 12cm and 13cm. Find the cost of painting on the sheet at the rate of Rs 30 per cm^(2) ?

10 cylindrical pillars of a building have to be painted. The diameter of each pillar is 70cm and the height is 4m. What is the cost of painting at the rate of Rs 5 per square metre

Eight solid spheres of the same size are made by melting a solid metallic cylinder of diameter 6 cm and height 32 cm. Then, the diameter of each sphere is ......... cm.

The edges of a triangular board are 6 cm, 8 cm and 10 cm. The cost of painting it at the rate of 9 paise per cm^2 is :