
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
Billy now wants to compare two different brands of cookies. He buys 5 packages of Brand X and 4 packages of Brand Y. Brand X packages contain 6, 8, 9, 11, and 13 cookies, respectively. Brand Y packages contain 14, 15, 18, and 20 cookies. Calculate the average number of cookies per package for each brand.

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