
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
In a history class, students are assigned to read a 900-page documentary book. Two students, Ella and John, plan to divide the reading to finish it together equally fast. Ella reads at a pace of one page every 40 seconds, and John reads at a pace of one page every 50 seconds. They decide Ella will start the book from page 1 and John will pick up at the page Ella stops. Determine the last page that Ella should read so that both spend the same amount of time reading.

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