
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
Given a school with a total of $400$ students, $50\%$ of the freshmen students play a musical instrument, and $25\%$ of all non-freshmen students do not play a musical instrument. Overall, $40\%$ of the students do not play a musical instrument. Calculate the number of non-freshmen who play a musical instrument.

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