
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
Hongfu Supermarket purchased a batch of salt. In the first month, 40% of this salt was sold. In the second month, 420 bags of this salt were sold. At this point, the ratio of the amount of salt sold to the amount remaining is 3:1. How many bags of salt did Hongfu Supermarket purchase?

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