
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
Joseph went on a journey to reach his campsite, initially biking at an average speed of 20 kilometers per hour. After covering one-third of the distance, he had a flat tire and had to walk the next one-third at 6 kilometers per hour. He was able to fix the tire and biked the remaining third of the journey at 15 kilometers per hour. The total trip took him 3 hours. Find, in kilometers rounded to the nearest tenth, how far did Joseph walk?
A) 10.4 km
B) 10.6 km
C) 10.8 km
D) 11.0 km

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