Possibilities 5058

Adamko is two years old and does not want to clean his toys. One night, the toy fairy came to his room and saw legos, a police car, blocks, and a train lying on the floor. The fairy decided to take 3 toys from Adamko. How many choices does a trio of toys have? Write all the possibilities.

Correct answer:

n =  4

Step-by-step explanation:

$$\begin{gathered} C_3(4)=\left(\genfrac{}{}{0ex}{}{4}{3}\right)=\frac{4!}{3!(4-3)!}=\frac{4}{1}=4 \\ n=\left(\genfrac{}{}{0ex}{}{3}{4}\right)=4 \end{gathered}$$

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