A cylinder and a cone are of the same base radius and of some height.Find the ratio of the volume of the cylinder to that of the cone.

A cylinder and a cone are of equal base radii and heights.If the ratio of the areas of their curved surfaces is 8:5,show that the ratio of the radius and the height of each of the two is 3:4.

Find the volumne of the following cylinders.

A cylinder,a cone and a hemisphere are of equal base and have the same height.What is the ratio of their volumes?

Find the volume of the following cylinders.

The radii of the bases of a cylinder and a cone are in the ratio 3:4 and their heights are in the ratio 2:3.What is the ratio of their volumes?

If the radius of the base of a right circular cylinder is halved,keeping the height same then the ratio of the volume of the cylinder thus obtained to the volume of original cylinder is ___

If the radius of one sphere is double the radius of another sphere,then find the ratio of the volumes of the spheres.

Wrapping a paper of breath 14cm. a cylinder of radius 20cm. is formed. Find the volume of the cylinder.

A solid consisting of a right circular cone of height 120cm and radius 60cm standing on a hemisphere of radius 60cm is placed upright in a right circular cylinder full of water such that it touches the bottom.Find the volume of water left in the cylinder if the radius of the cylinder is 60cm and its height is 180cm.

From a solid cylinder of height 2.4 cm and diameter 1.4 cm a cone of the same height and same diameter is cut out.Find the total surface area of the remaining portion of the cylinder.