# ISRO-2013-74

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The number of elements in the power set of the set {{A, B}, C} is

1. $7$
2. $8$
3. $3$
4. $4$
0
option D ?

No of elements of power set will be $2^{n}$ . here n is element of set

so given set has 2 elements then power set has $2^{2}$ = 4 elements(Ans option d)

which are { $\phi$ , {A,B}, {C}, { { A,B},C} }

selected

TWO ELEMENTS SO NUMBER ELEMENTS =2^2=4

{   ∅,  {{A,B}},  {C},  {{A,B},C}  }

edited by
0
second element in the power set must be {{A,B}} right ?
0
YES CHK NOW

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