When we were studying Intermediate, we used to say that "I got first class in my Tenth class public Examination". Our English lecturer would repeatedly correct us by saying that" I got a first class in my Tenth class public examination" stressing the use of article in the sentence.I want to know whether the use of article a is necessary or not in the sentence.
Generally the article "a" is preferred. But omitting it is such a minor error that I wouldn't bother to correct it in a student.
I got an A-star in French. (UK A-levels 18+)
I got a nine in Art. (UK GCSE 16+)
I got a GPA of 4.0 in my senior year. (US High School and college)
I got a starred distinction. (UK vocational qualifications)
I got a first class in Hindi. (Indian Standard and Highers)
(These all represent the highest achievement)
For the UK university system, you would say
I got a first. (UK university)
You don't use "a" when giving a measured mark or percentage
I got 75 per cent
I got 12 out of 20.