Maths Spl

No, you can see the pattern of the exam here:
https://www.shiksha.com/college/gls-institute-of-design/gls-institute-of-design-dat-exam-pattern

You can see the syllabus here:
https://www.dhsgsu.ac.in/noticedetails/275

Here is the link, please check to have the question paper- https://www.shiksha.com/university/andhra-university-visakhapatnam/aucet-exam-question-papers

Yes, you can, if you have scored more than 50% marks.

For doing architecture you need complete your 12th in science and give an entrance exam.

All the courses related to your Science background that is given below:
List of Courses After 12th Science Without Mathematics-
1 BBA. BBA stands for Bachelor of Business Administration.
2 BMS. BMS stands for Bachelor of Management Studies.
3 Diploma in Management. It is a job oriented Diploma course.

Yes, BBA stands for Bachelor of Business Administration. It is a general management education course. Students who have passed 12th standard are eligible to pursue this course. If you are interested in pursuing a management course right after 12th, BBA will suit you!
Eligibility criteria:
10+2 passed

Yes, you can easily opt for this choice as there are many colleges offering this course in the field of BBA. The only thing is that you have to search for those colleges offering this mix of choice.