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 cm²) is________?

Related Mcqs:

The area of the floor of a room is 20 m² that of a longer wall 15 m² and of the shorter wall 12 m², find the edge of the new cube?

A. 450 m3 B. 100 m2 C. 60 m3 D. 400 m3...

The area of a base of a cone is 30 cm². If the height of the cone is 6cm, find its volume?

A. 120 cm3 B. 40 cm3 C. 50 cm3 D. 60 cm3...

A rectangular courtyard, the sides of which are in the ratio of 4:3, cost Rs.600 for paving at 50 p per m²; find the length of the diagonal of the courtyard?

A. 25 m B. 35 m C. 45 m D. 50 m...

A rectangular field 30 m long and 20 m broad. How much deep it should be dug so that from the earth taken out, a platform can be formed which is 8 m long, 5.5 m broad and 1.5 m high where as the earth taken out is increase by 10/5?

A. 12 cm B. 10 cm C. 18 cm D. 24 cm...

The number of solid spheres each of diameter 6 cm, that could be moulded to form a solid metal cylinder of height 45 cm and diameter 4 cm is?

A. 3 B. 4 C. 5 D. 6...