
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 car travels the 150 miles from city C to city D at a speed of 75 miles per hour, and then returns to city C on the same route. If the average speed of the round trip is 50 miles per hour, what is the speed, in miles per hour, of the car on its return journey from D to C?

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