
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
Two swimmers start at opposite ends of a 120-foot pool. One swims at a rate of 4 feet per second, and the other at 3 feet per second. They swim back and forth for 15 minutes without losing time at the turns. Calculate the number of times they pass each other.

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