How to express "x out of y"? The phrase I'm trying to grab is usually used when stating survey results or something of the like, e.g.:


  A survey found that 7 out of 10 men go to the gym every week.


Could this be translated as something like this?


  一个概观发现，七个出十个男人每周去健身房`
If you want to express a percentage:

（某集体之中）有十分之七的人去了健身房。
或者：（平均下来）十个人里面有七个去了健身房。
70% of them went to the gym.

If you want to express a number:

这十个人里面有七个去了健身房。
(There are exactly 10 people in total, and exactly 7 people went to the gym.)