Maths Spl

Yes, you can go for that but you will be facing a lot of problem as you don't had maths because BBA contains mathematical subject in every semester. Hope you give your best. All the best.

Both the courses are best in their own place. It depends on your interest. More than 50+ colleges offer economics honours but only 10+ colleges under DU offer statistics (Hons). I would suggest you do statistics (Hons) from Sri Venkateshwar College because if you do this course and get good marks and knowledge of this subject then you will get easily placed in an MNC.

You can choose any subject of your choice. Studying with arts can also help you a lot for PC's.

No, you can take up BBA in IEM after completing your 12th if you had taken commerce stream in 12th and an aggregate of 55% and above.
Admission is through entrance test conducted by the university. If you want any further details about the universities let me know about your locality so that I can suggest a few good universities in your locality.

M.Sc maths is better in IIT Bhuvneshwar in terms of placement, faculty, infrastructure and ranking.

You can consider following colleges:
Brahmananda Keshab Chandra College - BKC
Jadavpur University
Jayasree Academy
JIS University
Lady Brabourne College
Netaji Subhas Open University
Techno India University
Vision Institute of Professional Study - VIPS

For doing BBA from this college mathematics is not mandatory.

Yes, you can do BA but if you want BA in economics or statistics then some colleges have made mathematics compulsory for it otherwise you can do BA in any subject.