State which of the following sets are finite or infinite :
$\{ x:x \in N$ and $x$ is prime $\} $
Decide, among the following sets, which sets are subsets of one and another:
$A = \{ x:x \in R$ and $x$ satisfy ${x^2} - 8x + 12 = 0 \} ,$
$B=\{2,4,6\}, C=\{2,4,6,8 \ldots\}, D=\{6\}$
Which of the following are sets ? Justify your answer.
A collection of novels written by the writer Munshi Prem Chand.
The number of non-empty subsets of the set $\{1, 2, 3, 4\}$ is
Which set is the subset of all given sets