
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
Car A and Car B start simultaneously from locations A and B, respectively, and will meet at some point. If Car A departs earlier, they will meet 30 minutes earlier. Given that Car A travels at 60 kilometers per hour and Car B at 40 kilometers per hour, how many minutes earlier does Car A need to depart?

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