V K Raman and S N Sharma Solutions for Exercise 4: CONCEPT REVISION TEST

There can be more than one universal set for a given number of sets.
 

Overlapping sets must have at least one common element.

The cardinal number of $\{$even numbers less than $11\}$ is _____.

$\{a, e, i, o, u\}$, $\{$vowels$\}$ are _____ sets.

$\{$fractions between $0$ and $1$$\}$ is a/an _____ set. $\left(\mathrm{finite} / \mathrm{infinite}\right)$

$\{1, 2, 3, 4\}$ is a _____ of $\{4, 2, 3, 1\}$

$\{$Multiples of $3$ less than $25\}$$=\{$_____$\}$.

$\{$Natural numbers$\}$ is the _____ of $\{1, 2, 3, 4, 5\}$ [subset / universal set / equal set]