
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
At the beginning of my bike ride, I feel energetic and can travel at 25 miles per hour. After a while, I become tired and travel only 15 miles per hour. If I also take a 1-hour rest without covering any distance, and the total distance I travel is 150 miles in a total time of 9 hours, how many hours did I feel energetic? Express your answer as a common fraction.

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