MEDIUM
9th CBSE
IMPORTANT
Earn 100

A boy has a spherical sweet of radius 4 cm. A girl has 8 spherical sweets each of radius 2 cm. Find the ratio of the volume of the sweets the boy has to the sweets the girl has.

Important Questions on Surface Areas and Volumes

MEDIUM
9th CBSE
IMPORTANT
MATHEMATICS>Chapter 13 - Surface Areas and Volumes>EXERCISES>Q 9
Surface area of a sphere of radius 5 cm is 5 times the area of the curved surface of a cone of radius 4 cm. Find the height of the cone.
MEDIUM
9th CBSE
IMPORTANT
MATHEMATICS>Chapter 13 - Surface Areas and Volumes>EXERCISES>Q 10
If the diameter of a sphere is decreased by 25% by what percent its curved surface of a cone of radius 4 cm. Find the height of the cone.
MEDIUM
9th CBSE
IMPORTANT
MATHEMATICS>Chapter 13 - Surface Areas and Volumes>EXERCISES>Q 11
The water for a factory is stored in a hemispherical tank whose internal diameter is 14 m. The tank contains 50 kilolitres of water. Water is pumped into the tank to fill to its capacity. Calculate the volume of water pumped into the tank.
MEDIUM
9th CBSE
IMPORTANT
MATHEMATICS>Chapter 13 - Surface Areas and Volumes>EXERCISES>Q 12
A hollow sphere of external and internal diameters 8 cm and 4 cm respectively is melted into a cone of base diameter 8cm. Find the height of the cone.
MEDIUM
9th CBSE
IMPORTANT
MATHEMATICS>Chapter 13 - Surface Areas and Volumes>EXERCISES>Q 13
How many spherical bullets can be made out of a solid cube of lead whose edge measures 44 cm, each bullet being 4 cm in diameter?
MEDIUM
9th CBSE
IMPORTANT
MATHEMATICS>Chapter 13 - Surface Areas and Volumes>EXERCISES>Q 14
The largest sphere is carved out of a cube of side 10.5cm. Find the volume of the sphere.
MEDIUM
9th CBSE
IMPORTANT
MATHEMATICS>Chapter 13 - Surface Areas and Volumes>EXERCISES>Q 15
A hemispherical bowl of internal diameter 36 cm  contains some liquid. This liquid is to be filled into cylinderical shaped bottles each of diameter 6 cm and height 6 cm. Find the number of bottles necessary to empty the bowl.
MEDIUM
9th CBSE
IMPORTANT
MATHEMATICS>Chapter 13 - Surface Areas and Volumes>EXERCISES>Q 16
A hemispherical tank is made up of an iron sheet 1 cm thick. If the inner radius is 1 m, then find the volume of iron used to make the tank.