\textbf{124.} In a cube, the plane passing through one edge and the midpoint of another edge divides the cube into two unequal pieces. What is the ratio of the volumes of these two pieces?
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\hfill (1) $\dfrac{1}{4}$ \hfill (2) $\dfrac{1}{3}$ \hfill (3) $\dfrac{1}{\sqrt{5}}$ \hfill (4) $\dfrac{1}{\sqrt{3}}$ \hfill
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