
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
Person A and person B start moving at the same time from two places that are 15 kilometers apart, heading in the same direction. Person A travels at a speed of 10 kilometers per hour, while person B travels at a speed of 7 kilometers per hour. How many hours will it take for person A to catch up with person B?

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