Is 27 Out of 80 Pass or Fail in CBSE? (Official Answer for 2024–25)

The short answer is: 27 out of 80 is a Pass in CBSE.

It is not a close call or a grey area. It is the official minimum passing mark set by the Central Board of Secondary Education for any theory paper carrying 80 marks. A student who scores exactly 27 has cleared the theory component of that subject as per CBSE's Examination Bye-laws.

Here is why — and what else you still need to do to be fully declared passed.

Why 27 Is the Magic Number in CBSE

CBSE requires every student to score a minimum of 33% in each subject to pass. When you apply that to an 80-mark paper, the math works out like this.

33% of 80 = 26.4

Since CBSE does not award fractional marks, 26.4 is rounded up to the nearest whole number, which is 27. That makes 27 the official floor for passing the theory paper.

Scoring 27 out of 80 gives you 33.75%, which is above the 33% threshold. You pass the theory component.

Scoring 26 out of 80 gives you 32.5%, which falls below 33%. You fail the theory component — regardless of your internal assessment or practical marks.

That one mark difference between 26 and 27 is the line between pass and fail in CBSE.

Is 27 Out of 80 a Pass in CBSE Class 10?

Yes. In Class 10, CBSE follows the 80 plus 20 pattern for all subjects — 80 marks for the written board exam and 20 marks for internal assessment. Scoring 27 out of 80 in the theory paper means you have cleared the written exam for that subject.

However, 27 out of 80 in theory alone does not mean you are fully declared passed. You must also score at least 7 out of 20 in internal assessment for the same subject. Both conditions must be met independently.

If you score 27 in theory and 7 in internal assessment, your total is 34 out of 100. That is a Pass.

If you score 27 in theory but only 6 in internal assessment, your total is 33 out of 100 — but you fail because the internal assessment component did not individually clear the 33% minimum.

Is 27 Out of 80 a Pass in CBSE Class 12?

It depends on which subject you are asking about.

For subjects that follow the 80 plus 20 pattern — English, Mathematics, Hindi, Economics, Accountancy, History, Political Science, Geography, and most others — yes, 27 out of 80 is a pass in the theory paper. The same condition applies: you must also score 7 or more out of 20 in internal assessment.

For Physics, Chemistry, and Biology, Class 12 follows a different pattern: 70 marks for theory and 30 marks for practical. These subjects do not have an 80-mark theory paper. For these, the minimum passing mark in theory is 23 out of 70, not 27 out of 80.

So if someone asks about scoring 27 in a Class 12 Biology or Physics theory paper — the paper is out of 70, not 80. Scoring 27 out of 70 is 38.57%, which is above 33% and therefore a pass in theory for those subjects.

What Happens If You Score Exactly 27 Out of 80?

You pass the theory component. CBSE does not apply any penalty or special scrutiny for scoring at the minimum. A student who scores 27 and a student who scores 79 are both equally declared passed in the theory paper. The difference shows up only in the grade and division, not in the pass or fail status.

Grades in CBSE are assigned based on the overall marks out of 100 after combining theory and internal assessment. Scoring 27 in theory and 7 in internal assessment gives 34 out of 100, which falls in the D grade band. It is a pass, but it does not earn distinction or first division.

The Full Picture: What You Need to Be Declared Passed

Clearing 27 out of 80 in theory is necessary, but it is not sufficient on its own. Here is what the complete passing requirement looks like.

For Class 10 and Class 12 subjects following the 80 plus 20 pattern, you need 27 or more out of 80 in the theory paper, and 7 or more out of 20 in internal assessment, for every single subject.

For Class 12 Physics, Chemistry, and Biology following the 70 plus 30 pattern, you need 23 or more out of 70 in theory, and 10 or more out of 30 in the practical examination.

Both components are evaluated independently. There is no averaging, no grace carry-over, and no cross-compensation between theory and practical allowed under CBSE's official rules.

Common Scenarios: Pass or Fail?

Scenario one — Theory: 27, Internal: 10. Total: 37 out of 100. Result: Pass. Both components cleared individually.

Scenario two — Theory: 27, Internal: 6. Total: 33 out of 100. Result: Fail. Internal assessment did not clear the 7-mark minimum.

Scenario three — Theory: 26, Internal: 15. Total: 41 out of 100. Result: Fail. Theory did not clear the 27-mark minimum. The high internal marks do not rescue the result.

Scenario four — Theory: 30, Internal: 7. Total: 37 out of 100. Result: Pass. Both components cleared.

Scenario five — Theory: 27, Internal: 7. Total: 34 out of 100. Result: Pass. Bare minimum cleared in both components.

What If You Score 26 Out of 80?

You fail the theory component of that subject. 26 out of 80 is 32.5%, which is below the 33% minimum. CBSE does not round up 26 to pass — the rounding only happens when calculating the minimum from the percentage (26.4 rounds up to 27). Once 27 is fixed as the passing mark, any score below it is a fail.

If you fail in only one or two subjects, CBSE places you in the compartment category. You can appear in the compartment examination for those subjects without repeating the full year. If you fail in three or more subjects, you must repeat the academic year entirely.

Frequently Asked Questions

Is 27 out of 80 a pass in CBSE? Yes. 27 out of 80 is the official minimum passing mark for any 80-mark CBSE theory paper. It equals 33.75%, which clears the mandatory 33% threshold.

What percentage is 27 out of 80 in CBSE? 27 out of 80 is 33.75%. It is above the 33% minimum and qualifies as a passing score in the theory paper.

Is 26 out of 80 a pass in CBSE? No. 26 out of 80 is 32.5%, which falls below the 33% minimum. The official passing mark is 27, and 26 is a fail in the theory component.

Can I pass CBSE if I score 27 in theory but low in internal assessment? Only if your internal assessment score is 7 or more out of 20. Both theory and internal assessment must individually meet the 33% minimum. A score of 27 in theory with 6 in internal assessment means you fail that subject.

Does scoring 27 out of 80 affect your grade in CBSE? Scoring 27 in theory means you pass, but the overall grade depends on the combined total out of 100. A total of 34 out of 100 (27 theory plus 7 internal) falls in the D grade band — a pass but not a strong result.

What is 33% of 80 in CBSE? 33% of 80 is 26.4. CBSE rounds this up to 27, which becomes the official passing mark for 80-mark theory papers.

Is 27 out of 80 a pass in CBSE Class 12 Physics? Physics in Class 12 uses a 70-mark theory paper, not 80 marks. The minimum passing mark for the theory paper in Physics is 23 out of 70. Scoring 27 out of 70 is 38.57% and is a pass. The concept of 27 out of 80 does not apply to Physics, Chemistry, or Biology in Class 12.

What happens if I score exactly the passing marks in CBSE? You are declared passed. CBSE treats the minimum passing mark the same as any other passing score. There is no special category or review for students who clear exactly the minimum threshold.