
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
The average age of a teaching staff of a school, consisting of 20 teachers, was 49 years. When one more teacher joined the school, the average age became 48 years. How old is the new teacher?

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