
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
Hui decides to read a newly released book, Geometry Wonders. On the first day, she reads $1/4$ of the pages plus $20$ more. On the second day, she reads $1/3$ of the remaining pages plus $25$ pages. On the third day, she reads $1/2$ of the remaining pages plus $30$ pages. After these three days, she finds that there are only $70$ pages left, which she reads the next day. How many pages are in this book?
**A)** 360  
**B)** 400  
**C)** 450  
**D)** 480  
**E)** 500

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