Hello,

The pass mark for a 75-mark theory paper varies depending on the institution or examination body's rules. However, here are some common passing marks:

· In many Indian schools and colleges, the pass mark is 33% or 36% of the total marks, which would be:

- 33% of 75 = 24.75 marks (rounded to 25 marks)

- 36% of 75 = 27 marks

However, maximum institutes follow the 33% rule which means the passing marks would be 24/25.

I hope this helps,

Thank you