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
Question:
During a school meeting, 300 students and 30 teachers are seated but 25 students are standing. How many attended the school meeting?
Answer:
Let's think step by step.

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