Question

If set $A=\{1,3,5\}$, then number of elements in $P\{P(A)\}$ is

• A. $8$
• B. $256$
• C. $248$
• D. $250$

Answer 1

Answer: (B)

Given, $A=\{1,3,5\}$
$\therefore n\{(P(A)\}=2^3=8$
$\therefore n[P\{P(A)\}]=2^8=256$