The passing marks required in term 1 class 10 board examination are 33% of total marks. The term exams are held for 40 marks. So the CBSE passing marks out of 40 are 13 i.e. 33% of 40.
All the best
class 10 exam are conducted by the maharashtra state board .For a student of 10th class should have percentage of 35 for passing the term 1 class 10 board examination.
hope this is useful.