There are 300 students + 30 teachers = <<300+30=330>>330 people that are seated.

Since there 25 students that are standing, so 330 + 25 = 355 people who attended the school meeting.

# Answer

355
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
During a school meeting, 300 students and 30 teachers are seated but 25 students are standing. How many attended the school meeting?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
355
During a school meeting, 300 students and 30 teachers are seated but 25 students are standing. How many attended the school meeting?
train