
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 school has $120$ students and $6$ teachers. Each student is enrolled in one class, and each teacher is teaching one class during the first period. The enrollments in the classes are $40, 40, 20, 10, 5,$ and $5$. Calculate $t-s$, where $t$ is the average number of students per teacher, and $s$ is the average number of students per student (including the student themselves).
A) -11.25  
B) -13.5  
C) 0  
D) 13.5  
E) 11.25

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