
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 places A and B is 450 kilometers. Two cars start simultaneously from these places and head towards each other. Car A's speed is twice that of Car B. After 3 hours, the two cars meet. Car A travels an average of ______ kilometers per hour.

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