
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 distance between settlements \( A \) and \( B \) is \( s \) km. At the same time, two car tourists left \( A \) for \( B \) on the same road, aiming to arrive in \( B \) at the same time. In fact, the first tourist arrived in \( B \) \( n \) hours earlier than scheduled, while the second was \( 3n \) hours late, as the latter traveled at an average of \( r \) km per hour less than the first. Determine the average speed of each car tourist.

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