
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 train travels a distance of 120 km at a constant speed. Yesterday, the train traveled half of this distance at the same speed and had to stop for 5 minutes. To arrive on time at the final destination, the engineer increased the train's speed by 10 km/h for the second half of the distance. Today, the train had to stop again at the middle of the same distance, but the delay lasted 9 minutes. At what speed did the engineer drive the train today for the second half of the distance, if the train arrived at the final destination on schedule again?

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