
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 a total of 10,000 math exam papers in the city, 500 papers are randomly selected, among which 420 papers are graded as passing. Estimate the number of people in the city who passed the exam.

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