Course grades will be determined by the average of the ten problem set grades (40%), the exam (40%) and approximately 30 in-class quizzes (20%).

课业成绩将由习题的平均分（40%）、考试（40%）和约30次课内小测成绩（20%）决定。

youdao

The problem reportedly has led to more than eight hundred crashes and nineteen deaths in the past ten years.

VOA: special.2010.02.05

All right, the problem sets: there will be roughly ten problem sets and I'll talk about them more later on when I hand them out.

关于课堂作业,我应该会安排十次左右的课堂作业,在留作业的时候我再细说

耶鲁公开课 - 博弈论课程节选

So, I have to check for that, but nine times out of ten there's not going to be a problem so now let's do this.

所以，我需要做一个检查,但是通过十有八九,这不会出现问题，现在我这样处理。

哈佛公开课 - 计算机科学课程节选

The Big Ten's primary problem is that its best programs that is, its historically elite ones aren't its best teams.

WSJ: College Football: The Big Ten Conference Has Seen Better Days

Ten weeks after the initial problem, the bank was still warning some customers that their statements may not be correct.

BBC: Education Committee

You know we focus on e-commerce -- I've never got any problem with government in the last ten years.

CNN: Jack Ma Talkasia Transcript