The perimeter of one face of a cube is $20\, cm$. Its volume is.........$cm^3$

$A$ right 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 perimeter of one face of a cube is $20 \, cm$. Its volume must be (in $cm^3$):

$2$ cubes,each of side $12\, cm$,are joined end-to-end. The surface area of the resulting cuboid is...........$cm^2$.

$A$ hemisphere and a cone have equal bases. If their heights are also equal,the ratio of their curved surfaces will be

$A$ cistern of dimensions $2.4 \, m \times 2.0 \, m \times 1.5 \, m$ takes $2 \, \text{hours} \, 30 \, \text{minutes}$ to get filled with water. The rate at which water flows into the cistern is