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# Find the union of each of the following pairs of set $X=\{1,3,5\},Y=\{1,2,3\}$

$\begin{array}{1 1}(A)\;\{1,3,5\}&(B)\;\{1,3,5,1,2,3\}\\(C)\;\{1,2,3,5\}&(D)\;\{1,2,3\}\end{array}$

Can you answer this question?

$X\cup Y=\{1,3,5\}\cup \{1,2,3\}$
$\Rightarrow \{1,2,3,5\}$
Hence (C) is the correct answer.
answered May 26, 2014