Ans: C
Let $x$ be the mean of the numbers of pages of the remaining $4$ magazines.
Let $x$ be the mean of the numbers of pages of the remaining $4$ magazines.
$\begin{array}{rcl}
\dfrac{6 \times 108 + 4x}{10} & = & 132 \\
648 + 4x & = & 1320 \\
x & = & 168
\end{array}$
Therefore, the mean of the numbers of pages of the remaining $4$ magazines is $168$.
