
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 20-quart radiator contains 18 quarts of water and 2 quarts of oil. Five quarts of this mixture are removed and replaced with pure antifreeze. This replacement process is done two more times. Calculate the fractional part of the final mixture that is water.

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