
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 takes Sharon one hour to drive the 59 km from her home to her office. Her drive includes 20 minutes on a highway and 40 minutes on city roads. Her average speed when she is on city roads is 45 km/h. Calculate the average speed at which she drives on the highway.

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