
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
From 4 boys and $n$ girls, 2 students are randomly selected to participate in a math competition. Given that the probability of "at least 1 of the 2 is a girl" is $\frac{5}{6}$, find the value of $n$.

Present the answer in LaTex format: \boxed{Your answer}
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