A cylinder of radius 12 cm contains water to a depth of 20 cm. When a spherical iron ball is dropped in to the cylinder, the level of water is raised by 6.75 cm. Find the radius of the ball. `[pi = (22)/(7)]`

There is come water in a cylindrical pot whose base diameter is 12 cm in length. A solid spherical ball is immersed in this cylindrical pot and water level raised in 1 cm. Find the length of diameter of spherical ball.

A cylindrical vessel of radius 4 cm contains water. A solid sphere of radius 3 cm is lowered into the water, until it is completely immersed. Find the rise in the water level ( in cm) in the vessel.

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

The height of a right circular cylinder is 12 cm and the diameter of the base is 7 cm. Find the area of its total surface.

Find the volume and the total surface area of a hemisphere of radius 3.5 cm . (pi= (22)/(7))

A Rectangular paper of width 14 cm is folded along its width and a cylinder of radius 20 cm is formed. Find the volume of the cylinder (Take pi =(22)/(7))

If the height of a solid right circular cylinder of 7cm. Is increased by 10%, then the volume of the cylinder is increased by 154 c.cm. The radius of the cylinder is

Find the volume of the largest cylinder inscribed in the sphere of radius r cm.

find the volume of the largest cylinder inscribed in the sphere of radius r cm.