Home
Class 9
MATHS
The front compound wall of a house is de...

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)`.

Text Solution

Verified by Experts

The correct Answer is:
Rs. 2784.26 (approx.)
Promotional Banner

Topper's Solved these Questions

  • SURFACE AREAS AND VOLUMES

    KUMAR PRAKASHAN|Exercise SKILL TESTING EXERCISE|49 Videos

  • SURFACE AREAS AND VOLUMES

    KUMAR PRAKASHAN|Exercise MULTIPLE CHOICE QUESTIONS|18 Videos

  • SURFACE AREAS AND VOLUMES

    KUMAR PRAKASHAN|Exercise EXERCISE 13.8|10 Videos

  • STATISTICS

    KUMAR PRAKASHAN|Exercise MULTIPLE CHOICE QUESTIONS|12 Videos

  • TRIANGLES

    KUMAR PRAKASHAN|Exercise SUMS TO ENRICH REMEMBER|9 Videos

Similar Questions

Explore conceptually related problems

Find the total surface area of a cylinder with radius 21 cm and height 5 cm.

A right circular cylinder has base radius 14 cm and height 21 cm. Find its total surface area.

A right circular cylinder has base radius 14 cm and height 21 cm. Find its volume.

A right circular cylinder has base radius 14 cm and height 21 cm. Find its curved surface area.

The total surface area of a closed cylinder with radius 3.5 cm and height 6.5 cm is …….. cm^(2) .

A right circular cylinder has base radius 14 cm and height 21 cm. Find its area of base (or area of each end)

A metallic cylinder of diameter 5cm. And height 3(1)/(3) cm is melted and cast into a sphere. What is its diameter.

A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. find the height of the cylinder.

Find the volume of a sphere of radius 11.2 cm.