
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
It initially took 19.5 hours to travel by train from City A to City B at the beginning of 1998. Throughout the following years, the train's speed increased three times: first by 30% in 1998, then by 25% in 1999, and finally by 20% in 2000. After these three speed increases, how many hours does it take to travel by train from City A to City B?

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