1. The volume of a right circular cylinder is 345 cm³. Then, the volume of a right circular cone whose radius of the base and height is the same as of circular cylinder will be:

2. The slant height of a bucket is 26 cm. The diameter of upper and lower circular ends are 36 cm and 16 cm. then height of bucket is:

3. The volume (in cm³) of the largest right circular cone that can be cut off from a cube of edge 4.2 cm is:

4. By melting a solid sphere of radius 5 cm a solid right circular cone of the same circular base radius is made. The height of cone is:

5. A cylinder and a cone area of same base radius and of same height. The ratio of the volume of cylinder to that of cone is:

6. Eight solid sphere of same size are made by melting a solid metallic cylinder of base diameter 6 cm and height 32 cm. The diameter of each sphere is:

7. The number of conical bottles of radius 2 cm and height 3.6 cm, required to empty the liquid from a cylindrical bottle of radius 6 cm and height 10 cm is: