
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 passenger on a train knows that the speed of this train on the current section of the track is 40 km/h. As soon as an oncoming train began to pass by the window, the passenger started a stopwatch and noticed that the oncoming train took 3 seconds to pass by the window. Determine the speed of the oncoming train, given that its length is 75 meters.

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