
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
Keiko walks around a rectangular track with semicircular ends each day. The straight lengths are constant, and the track width is 8 meters. It takes her 48 seconds longer to walk around the outside than around the inside. Given this, calculate Keiko's average speed in meters per second.

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