Find the amount of water displaced by a solid spherical ball of diameter 28 m.

Find the amount of water displaced by a solid spherical ball of diameter 0.21 m.

Find the surface area of a sphere of diameter: 28cm

A solid sphere of radius 3 cm is melted and then recast into small spherical balls each of diameter 0.6 cm. Find the number of small balls thus obtained.

A measuring jar of internal diameter 10 cm is partially filled with water. Four equal spherical balls of diameter 2 cm each is dropped in it and they sink down in water completely. What will be the change in the level of water in the jar?

Find the cost of preparing a closed cylindrical tank of height 2.8 m and base diameter 4 m at the rate of Rs 100 per sq. m.

Find the surface area of a sphere of diameter: 3.5m

A spherical ball of lead 3 cm in diameter is melted and re casted into three spherical balls. If the diameter of two balls be 3/2 cm and 2 cm, find the diameter of the third ball.

A spherical glass vessel has a cylindrical neck 8 cm long, 2 cm in diameter, the diameter of the spherical part is 8.5 cm. By measuring the amount of water it holds, a child finds its volume to be 345 cm^3 . Check whether she is correct, taking the above as the inside measurements, and pi = 3.14.