Gymnasium - classes

Half of the 9th-grade students want to study at secondary technical schools, a quarter at vocational schools, a sixth at gymnasiums, and 3 students do not wish to continue their studies. How many pupils are there in the class?

Final Answer:

n =  36

Step-by-step explanation:

$$\begin{gathered} \frac{n}{2}+\frac{n}{4}+\frac{n}{6}+3=n \\ n/2+n/4+n/6+3=n \\ n=36 \end{gathered}$$

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