
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
Emma drove 120 miles in 2 hours. In the first 40 minutes, she traveled at an average speed of 50 mph, and in the second 40 minutes at an average speed of 55 mph. What was her average speed, in mph, during the last 40 minutes?
A) 72 mph
B) 75 mph
C) 78 mph
D) 80 mph

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