Soccer teams

Have to organize soccer teams. There are three age groups. How many different ways can you organize ten teams for each age group? Is this a permutation or combination?

Correct answer:

x =  4060

Step-by-step explanation:

$$\begin{gathered} C_3(30)=\left(\genfrac{}{}{0ex}{}{30}{3}\right)=\frac{30!}{3!(30-3)!}=\frac{30\cdot 29\cdot 28}{3\cdot 2\cdot 1}=4060 \\ x=\left(\genfrac{}{}{0ex}{}{3\cdot 10}{3}\right)=4060 \end{gathered}$$

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