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Let $A=\{1,2,\{3,4\},5\}$.Which of the following statements are incorrect and why?$\{1,2,5\} \in A$

$\begin{array}{1 1}(A)\;\text{Correct}\\(B)\;\text{Incorrect}\end{array} $

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$\{1,2,5\}\in A$
$\{1,2,5\}$ is subset of A
$\therefore$ The given statement is incorrect.
Hence (B) is the correct answer.
answered May 26, 2014 by sreemathi.v

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