If each person eat one quarte (1/4) of the cake, this means that only 4 people can eat from one cake, as:
[tex]\begin{gathered} n\cdot\frac{1}{4}=1 \\ n=1\cdot\frac{4}{1} \\ n=4 \end{gathered}[/tex]Each person eats 2 pieces of 1/8 of the cake, as 2*1/8=2/8=1/4.
Answer: 4 people can eat cake.