
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 user has two folders with files on their computer desktop. The first folder contains 16 files, 4 of which are smaller than 500 kilobytes. The second folder contains 20 files, 5 of which are smaller than 500 kilobytes. Without considering file sizes, the user moves one file from the first folder to the second folder, and then opens a file from the second folder. Find the probability that the opened file will be smaller than 500 kilobytes.

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