University math online test

You might need to be a bit more specific. There are quite a few universities. Do you mean admission tests such as the TMUA, or actual papers from universities that undergrads sit, and if so what university?

If it is an admission test, there is generally no "pass grade". However, for TMUA (which is the only online admission test I can think of) a 6.5 is considered good. Past papers, as well as the syllabus are available if you search them up online, and similarly so too are the grade boundaries (although you may need to go check Freedom Of Information requests for them). For undergrad past papers, unfortunately this depends on the university. Some are available freely, while others are only available to students of that university. Similarly, class boundaries vary between universities, although I'm pretty sure that for most courses and universities a 40% score is always a pass.

I'm apply for bsc computer science as a international student in LMU ....so maths online test is required for my admission but there is no information anywhere regarding the syllabus or creteria trelated to maths online test ....so if you known about this so please tell me