Out of 80 marks, the common passing requirement (like in CBSE exams) is 33% , which comes to 26.4 marks , so schools usually set the passing marks as either 26 or 27 out of 80 , depending on their rounding rule.

If you’re asking specifically for CBSE school exams :

  • Many guides explain that 33% of 80 = 26.4 , and they treat the minimum passing marks as 26 out of 80.
  • Some education blogs and school resources round 26.4 up and say you should aim for 27 out of 80 to be safely above the cutoff.

So in simple terms:

  • Mathematically required (33%) : 26.4
  • Practically used passing marks : 26 or 27 out of 80 , depending on your school’s rule.

If you tell me your board or school (CBSE, state board, university, etc.), I can help you interpret which of these is more likely for you.