Number of elements in the power set of $\{p, q\}$ is

Number of elements in the power set of $\{p, q\}$ is
  1. $4$
  2. $2$
  3. $3$
  4. $5$

Solution

$2^{2} = 4$. Subsets: $\emptyset, \{p\}, \{q\}, \{p,q\}$.

Asked in: MH-SSC-9

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