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# If $nC_{12}=nC_8$ then $n$ is equal to

$\begin{array}{1 1}(A)\;20\\(B)\;12\\(C)\;6\\(D)\;30\end{array}$

Can you answer this question?

$n=12+8$
$\;\;\;=20$
Hence (A) is the correct answer.
answered May 16, 2014