
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
At Westside Academy, there are 500 students in total. Out of these, 150 students own cats, and 100 students own dogs. It is known that, from those who own pets, 40 students own both a cat and a dog. What percent of the students own at least one type of pet?

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