We have no problem whatsoever with any country arguing about the numbers."

VOA: standard.2010.08.03

You'll have weekly - approximately weekly homework assignments that account for 10% of your grade, but they have an impact beyond the 10% because if you can do the homework and you understand the homework, you're going to have no problem with the exams.

你们有个周作业,大约是每周一次,这个作业占总分的百分之十,但这个作业对分数的影响大得多,因为你如果你做了并弄懂了家庭作业,考试就没问题了

耶鲁公开课 - 生物医学工程探索课程节选

How many" is very simple. You will have no problem with this question.

How many”的用法也非常简单。相信你不会遇到太大的问题的。

How many课堂 - SpeakingMax英语口语达人