If the base radius and the height of a right circular cone are increased by 20%, then the percentage increase in volume is approximately

The ratio of the volume of a right circular cylinder and a right circular cone of the same base and height, is

A right circular cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is

The diameters of two cones are equal. If their slant heights are in the ratio 5 : 4, the ratio of their curved surface areas, is

If h, S and V denote respectively the height, curved surface area and volume of a right circular cone, then 3πVh³-S²h²+9V² is equal to