
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 cup of saltwater, if 200 grams of water are added, its concentration becomes half of the original. If 25 grams of salt are added, its concentration becomes twice the original. What was the original concentration of this cup of saltwater?

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