Jharne De and Ranjana Kumar Solutions for Chapter: Volume and Surface Area, Exercise 1: Mental Maths

The number of cubes of edge $10 \mathrm{cm}$ that can be placed in a cube of edge $1 \mathrm{m}$ is _____.

If three cubes, each of the side $8 \mathrm{cm}$, are joined end to end. The total surface area of the resultant solid will be _____ ${\mathrm{cm}}^2$

The volume of a rectangular tank is $182 {\mathrm{m}}^3$.The length and breadth are $8 \mathrm{m} \mathrm{and} 6.5 \mathrm{m}$ respectively and the depth is _____ $\mathrm{m}$

The maximum length of a pencil that can be kept in a rectangle of length $12 \mathrm{cm}$, breadth $9 \mathrm{cm}$ and height $8 \mathrm{cm}$ is _____ $\mathrm{cm}$

The number of lateral faces of a cube is _____.

The volume of a cylinder whose diameter is equal to its height is _____

A cube has _____ diagonals

The sum of the areas of all the faces (excluding top and bottom) of a cuboid is the _____ (CSA/ TSA/ Volume) of the cuboid