Colleges in Ranchi

The cut off for St. Xavier's College for FYBA is quite high. Around 95%-98%. There is no OBC quota here. The only reservations provided are management quota, a Christian minority and special category that is national level sports or freedom fighter ward or ward of some transferred state worker (high post).
You shall try for other colleges, you can't get in Xaviers according to me. All the best.

Candidates must have minimum 50% (45% for SC/ST/PwD) marks in Class X*. Candidates must have passed Class XII* / Equivalent Qualifying Examination with minimum 50% (45% for SC/ST/PwD) marks with English as a subject in the qualifying examination.

The aggregate percentage required for getting admission in St. Xavier's College Mumbai is 60% and the marks are calculated according to English plus any three subjects. For more information, visit their website.

Yes, your percentage is enough for getting admission in St.Xaviers College for BA.

Yes, you can go for it. It's a very good college.

For mathematics, not only maths will be asked; both GK and logical reasoning will be there.

Are you planning to take admission in Central University of Jharkhand? If yes, then I would like to tell you that they do not offer online courses.

You can get admission for B.Com with 76.25%. Then, you need to fill college forms and all college forms are rebel inter college or on their website.