
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
In a certain city, there are 30,000 senior high school students majoring in science. In a research test, the math scores follow a normal distribution ξ～N(100,σ^{2}). It is known that P(80 < ξ ≤ 100)=0.45. Determine the number of papers that should be selected from those scoring above 120 in a stratified sampling method that selects 200 test papers for score analysis.

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