
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
A group of tourists was supposed to arrive at the train station at 5 o'clock. By this time, a bus from the tourist base was supposed to arrive to pick them up. However, arriving at the station at 3:15, the tourists, without waiting for the bus, started walking to the tourist base. Meeting the bus on the way, they got in and arrived at the base 15 minutes earlier than the scheduled time. What was the speed of the tourists before meeting the bus if the bus's speed is 60 km/h?

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