
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
To $100$ ounces of a $50\%$ solution of acid, $x$ ounces of a $20\%$ solution of acid are added to yield a solution that is $(50-p)\%$ acid. If $p=15$, calculate $x$.
A) $80$ ounces  
B) $90$ ounces  
C) $100$ ounces  
D) $110$ ounces  
E) $120$ ounces

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