Six-eights

Six-eights of the one hundred pupils joined the Math Glee club. If the members of the Math Glee club were grouped into three, how many members were in each group?

Correct result:

g =  25

Solution:

$$\begin{gathered} c={\displaystyle \frac{6}{8}}\cdot 100=75 \\ g=c\mathrm{/}3=75\mathrm{/}3=25 \end{gathered}$$

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