Jharne De and Ranjana Kumar Solutions for Chapter: Volume and Surface Area, Exercise 3: Work it Out

Find the surface area of a cube whose volume is $512 c{m}^3$.

Find the volume of a cube whose surface area is $150 m^2$.

A cubical box of cardboard has an edge $4.8 m$ long. How many closed cubical boxes of dimensions $24 cm\times 12 cm\times 10 cm$ can be made out of it?

Shika wants to cover a gift box whose dimensions are $20 \mathrm{cm}, 30 \mathrm{cm} \mathrm{and} 8 \mathrm{cm}$. She has a piece of a paper of area $1 m^2$. Will she be able to cover the gift ? Explain.

The walls and ceiling of a room are to be plastered. The length, breadth, and height of the room are $4.5 \mathrm{m}, 3 \mathrm{m} \mathrm{and} 350 \mathrm{cm}$ respectively. Find the cost of plastering the room at the rate of $₹12$ per $m^2$.

Find the volume and curved surface area of a cylinder that is $140 \mathrm{cm}$ high and has a base diameter of $10.5 \mathrm{cm}$

Find the capacity in litres of a tank which is $4.2 \mathrm{m}$ long, $3 \mathrm{m}$ wide and $1.8 \mathrm{m}$ high

The volume of a cuboidal tank is $182 {\mathrm{cm}}^3$. If its length and breadth are $8 \mathrm{cm}$ and $6.5 \mathrm{cm}$ respectively, then find its depth.