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# If $A=\{3,5,7,9,11\},B=\{7,9,11,13\},C=\{11,13,15\}$ and $D=\{15,17\}$.Find $A\cap C\cap D$

$\begin{array}{1 1}(A)\;\{3,5,7,9,11\}&(B)\;\{11,13,15\}\\(C)\;\{3,5,7,9,11,13,15\}&(D)\;\phi\end{array}$

## 1 Answer

There is no common element in A,C,D
$\therefore A\cap C\cap D=\phi$
Hence (D) is the correct answer.
answered May 27, 2014

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