Curioustab

Home » Aptitude » Volume and Surface Area

If a solid sphere of radius 10 cms is moulded into 8 spherical solid balls of equal radius, then surface area of each ball (in sq.cm) is ?

100 π
101/π
99 π/12
54/13π

Correct Answer: 100 π

Explanation:

4/3 π x 10 x 10 x 10 = 8 x 4/3 π x r x r x r
r = 5
4π x 5 x 5 = 100π

← Previous Question Next Question→

More Questions from Volume and Surface Area

If the volume of the cube is 729 cm3 , then the surface area of the cube will be
The circumferences of two circles are 264 meters and 352 meters. Find the difference between the areas of the larger and the smaller circles ?
Ratio between heights of two cylinder in the ratio 3:5. Their volumes are in the ratio 27:80. Find ratio between their radius ?
A cuboidal block 6cm x 9cm x 12cm is cut up into an exact number of equal cubes.The least possible number of equal cubes will be
A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?
Find the surface area of a cuboid 16 m long, 14 m broad and 7 m high
There is a cylinder circumscribing the hemisphere such that their bases are common. Find the ratio of their volumes
The capacity of a tank of dimensions (8m x 6m x 2.5m)is
How many iron rods, each of length 7 mts and diameter 2 cms can be made out of 0.88 cubic metre of iron ?
The areas of three consecutive faces of a cuboid are 12 cm², 20cm² and 15 cm², then the volume (in cm³) of the cuboid is

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion