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# If $A=\{1,2,3,4\},B=\{3,4,5,6\},C=\{5,6,7,8\}$ and $D=\{7,8,9,10\}$ Find $B\cup D$

$\begin{array}{1 1}(A)\;\{3,4,5,6,7,8,9,10\}\\(B)\;\{3,4,5,6,7\}\\(C)\;\{8,9,10\}\\(D)\;\{7,8,9,10\}\end{array}$

Can you answer this question?

$B=\{3,4,5,6\},D=\{7,8,9,10\}$
$B\cup D=\{3,4,5,6,7,8,9,10\}$
Hence (A) is the correct answer.
answered May 26, 2014