
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
A certain logistics company needs to transport 300 tons of goods to a certain location. They have two types of trucks, type A and type B. It is known that each type A truck can carry 20 tons of goods, and each type B truck can carry 15 tons of goods. Without overloading any truck, and ensuring that all 300 tons of goods are transported in one go, and using exactly 7 type A trucks, how many type B trucks at least need to be called for?

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