S K Gupta and Anubhuti Gangal Solutions for Chapter: Volume and Surface Area of Solids, Exercise 7: Mental Maths

Find the volume of a cube with edge $\sqrt[3]{8} \mathrm{cm}$ in ${\mathrm{cm}}^3$

The volume of a cube is $64 {\mathrm{cm}}^3$. Find its surface area.
 

Find the edge of a cube whose volume is $125 {\mathrm{cm}}^3$.
 

Find the height in $\mathrm{m}$ of a cuboid of volume $24 {\mathrm{m}}^3$ with length $4 \mathrm{m}$ and breadth $3 \mathrm{m}$.

A tank is $2 \mathrm{m}$ long, $1.5 \mathrm{m}$ wide and $1 \mathrm{m}$ deep. Find the number of litres of water contained in it.

A cuboid of volume $135 {\mathrm{cm}}^3$ is melted and cast into $5$ equal cubes. Find the edge of one cube in $\mathrm{cm}$.

$1 {\mathrm{m}}^3=$_____ litres

$1 \mathrm{litre} =$ _____ $\mathrm{mL}$