What is the ratio of volume to surface area of sphere?

Volume and surface area of sphere

What is the ratio of total surface areas of cylinder and sphere ?

As shown in the adjacent figure, a sphere is placed in a cylinder. It touches the top, bottom and the curved surface of the cylinder. If radius of the base of the cylinder is 'r', (i) what is ratio of the radii of the sphere and the cylinder? (ii)what is the ratio of the curved surface area of the cylinder and the surface area of the sphere? (iii) what is the ratio of the volumes of the cylinder and the sphere?

A sphere is placed in a cube so that it touches all the faces of the cube. If 'a' is the ratio of the volume of the cube to the volume of the sphere, and 'b' is the ratio of the surface area of the sphere to the surface area of the cube, then the value of ab is:

Which of the following is the ratio of the surface area of the sphere with radius r to its volume?

The ratio of the surface area of sphere A to the surface area of sphere B is 729 : 1. What is ratio of the volume of sphere A to sphere B ?

A sphere and a cube have equal surface areas.What is the ratio of the volume of the sphere to that of that cube?

If the ratio of the volume and the whole surface area of a solid sphere be 4:9 then find the radius of sphere.

What will be the ratio of the volume of a sphere and a cube if the surface areas of the sphere and the cube are equal ?

What will be the ratio of the volumes of a sphere and a cube if their total surface areas are equal ?