Class 12-Commerce

Yes.
If your friend studies in CBSE class 11th in science then he/she can change the subject, but remember CBSE allows change of subjects only up to a limited time. For example, if one has non-med and wants to go to commerce or humanities then he/she should immediately submit the application to the Principal/Management.
I think school co-ordinators also alert you once in class 11th if someone wishes to change the subject. Otherwise, it will be too late for taking a decision.
Moreover, I don't think in class 12th CBSE allows subject change.
All the best.

CFP means Certified Financial Planner. It is a certificate course which can be done after graduation and also requires a little work experience.

Dear,
As per your query, you can think of these options:
Economics (Hons.)
Law - BBA LLB or B.Com LLB
BBA (finance, international business, marketing, healthcare management)
BFA - Animation
Interior design
Fashion design
Footwear design
Product design
Journalism
Psychology
Sociology
International relations
English hons
Foreign language
Social work
Special Education
Physical education
So, choose the field according to your caliber and interest.
All the best!

I think CA is the best option for you because some part of CA course is covered in class 11th and 12th maths.

Hi Shania,
A lot of options are available. Some of the popular ones are as follows especially if you like maths:
BA in economics
B.Com
CA
CS
CFA
BA - LLB
BBA
BCA
Bachelors in accounting and finance
Bachelor in financial market
BMS
Alternately, you can check journalism and mass communication, hospitality courses, etc. Study as per your interests and aptitude.

Hi,
Kindly, refer the following link for the same:
https://goo.gl/mJyJT3

India is a very good place to do B.Com (Hons.) You may try to get admission in colleges such as SRCC, St Stephen's-Delhi University etc. Campus placement records of these colleges for B.Com (Hons.) graduates is excellent. You are advised to evaluate doing PG abroad if you can afford it.

Hi,
I think everyone feels that way in some or the other time in life. I also had tough time with maths but it's all about practicing and focusing on maths. I was very lazy for doing so but if you secure nice marks in maths, it helps you to gain more percentage. I literally got 78 out of 100 in compulsory maths and 84 out of 100 in optional maths in finals, whereas, I never scored more than 50 in internals. So, don't give up. Keep practicing and one day you will realise that maths is fun.