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  4. If the set A contains 5 elements, then the number of elements in the power set P(A) is

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Q. If the set $A$ contains $5$ elements, then the number of elements in the power set $P(A)$ is

KEAMKEAM 2011Sets

Solution:

$n(A) = 5$
$\Rightarrow n(P(A)) = 2^5 = 32$.