<p>My oppinion is students can study for test about 5 hours.
You know what? korean students are how to study for test?
I think that korean test’s level is higher than western test, and korean test have a too many question. But, korean students can study for test about 11 subject just 5 hours.
therefore, students can study only 5 hours.
But, you have to know first.
You have to concentrate for study. it is too important.</p>