
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
Mr. Allen needs to reach his office, which he usually tries to do by 9:00 AM. If he drives at 30 miles per hour, he finds himself 5 minutes late. If he accelerates to 50 miles per hour, he reaches 5 minutes early. How fast must Mr. Allen drive to reach his office exactly on time?
**A**. 35 mph
**B**. 37.5 mph
**C**. 40 mph
**D**. 42.5 mph

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