
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 path from post office \( A \) to village \( B \) first goes uphill for 2 km, then on a flat section for 4 km, and finally downhill for 3 km. The postman takes 2 hours and 16 minutes to travel from \( A \) to \( B \), and 2 hours and 24 minutes to travel back. If the end point of the journey was located at the same road but halfway to \( A \), the trip there and back would take 2 hours and 19 minutes. How many kilometers per hour does the postman travel: a) uphill; b) on flat ground; c) downhill?

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