
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
Contractor Lisa agreed to complete a project in 40 days. After 10 days, she discovered that the 10 people working had completed $\frac{2}{5}$ of the project. Assuming each worker contributes equally, what is the minimum number of workers she must retain to ensure the project is finished on schedule?

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