
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 start of a journey, a car travels at 30 miles per hour. As the journey progresses, the car slows down to 18 miles per hour due to traffic. If the car covers a total of 156 miles in a total time of 7 hours, for how many hours did the car travel at 30 miles per hour? Express your answer as a common fraction.

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