The material of a cone is converted into the shape of a cylinder of equal radius.  If the height of the cylinder is 5 cm, the height of cone is

If the volume and surface area of a sphere are numerically the same, then its radius is

A vessel is in the form of an inverted cone. Its height is 11 cm and the radius of its top which is open is 2 . 5 cm.  It is filled with water up to the rim.  When lead shots, each of which is a sphere of radius 0.25 cm are dropped in to the vessel, ²/₅ of the water flows out.  Find the number of lead shots dropped in to the vessel

The volume of a square pyramid of base edge 12 centimetres and slant height 17 centimetres is

A toy in the shape of a square pyramid has base edge 25 centimeters and slant height 8 centimeters. Then its lateral surface area is

A toy is in the form of a cone mounted on a hemisphere with the same radius.  The diameter of the base of the conical portion is 12 cm and its height  is 8 cm.  Then the surface area of the toy is _______. 

A cylindrical tower is 5 m in diameter and 14 m high.  The cost of white washing its curved surface at 50 paisa per m² is

A cylindrical vessel 60 cm in diameter is partially  filled with water.  A sphere, 30 cm in diameter is gently dropped into the vessel.  To what further height will water in the cylinder rise ?

The surface area of a sphere whose radius is 2.1 metres. 

The height of a cone is 16 cm. and the diameter of its base is 24 cm.  Then the volume of the cone is