
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 distance between points A and B is 90 km. At 9:00, a bus departs from point A to point B at a speed of 60 km/h. Starting from 9:00, buses leave point B every 15 minutes towards point A at a speed of 80 km/h. The bus that departed from point A reduces its speed to 20 km/h due to a breakdown after traveling 45 km and continues moving at this slower speed. A passenger on this bus is considering whether to continue the slow journey to point B or return to point A on the first approaching bus. How much time does the passenger have to make this decision?

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