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UPSC Prelims utilizes a standard 1/3rd (33.33%) negative marking penalty for every incorrect answer. Unattempted questions carry zero penalty.
Attempt Strategy: With a 1/3rd ratio, the mathematical Break-Even Accuracy is 75%. If you can eliminate two options (50-50 odds), the mathematical expected value of attempting that question is positive (+0.67 marks on GS-1).
Attempting more questions does not automatically guarantee higher scores. When your accuracy falls below the Break-Even point, penalty deductions outweigh any additional marks earned.
Scores in the Risk / Danger Zone indicate that mistakes are outpacing correct responses. Focus mock practice on eliminating 2 options before making an educated guess.
In 1/3rd penalty exams (like UPSC), every 3 mistakes cancel out 1 correct answer completely. In 1/4th penalty exams, 4 mistakes cancel 1 correct answer.
Pure blind guesses on 4 options have a negative expected return (-0.08 marks on 1/3rd penalty). Guessing only when 2 options are eliminated yields a strong positive return (+0.33 to +0.67 marks).
Learn the exact mathematical formulas used by examination commissions to calculate final scaled merit.
Suppose a candidate attempts 86 questions out of 100 in SSC CGL Tier 1 (+2.00 correct, -0.50 wrong):
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Common queries regarding negative marks calculation, formulas, and competitive exam rules.
Negative marking is a scoring mechanism where a predetermined fraction of marks is deducted for each incorrect answer. It prevents blind guessing and measures genuine subject proficiency in objective (MCQ) exams.
To calculate 0.25 negative marking: Multiply your correct answers by the mark value per question, then subtract (Wrong Answers ร Mark value ร 0.25). For a 100-question exam of 1 mark each with 70 correct and 20 wrong: (70 ร 1) - (20 ร 0.25) = 70 - 5 = 65 marks.
For 1/3rd negative marking: Multiply total wrong answers by (Marks per question รท 3) and subtract the total from your positive marks. In UPSC GS Paper 1 (+2 marks per question): each wrong answer deducts 2 รท 3 = 0.66 marks.
Break-Even Accuracy represents the threshold accuracy percentage at which additional attempts neither add nor subtract from your net total. For 1/3rd negative marking, BEA is 75%. If your accuracy is above 75%, attempting more questions increases your score. If your accuracy is below 75%, extra attempts will decrease your score.
เคจเฅเคเฅเคเคฟเคต เคฎเคพเคฐเฅเคเคฟเคเค เคฎเฅเค เคเฅเคฒ เคถเฅเคฆเฅเคง เค เคเค เคจเคฟเคเคพเคฒเคจเฅ เคเคพ เคธเฅเคคเฅเคฐ เคนเฅ: เคถเฅเคฆเฅเคง เค เคเค = (เคธเคนเฅ เคชเฅเคฐเคถเฅเคจ ร เคชเฅเคฐเคคเคฟ เคชเฅเคฐเคถเฅเคจ เค เคเค) - (เคเคฒเคค เคชเฅเคฐเคถเฅเคจ ร เคชเฅเคฐเคคเคฟ เคเคฒเคค เคเคเฅเคคเฅ)เฅค เคฌเคฟเคจเคพ เคนเคฒ เคเคฟเค เคเค (Unattempted) เคชเฅเคฐเคถเฅเคจเฅเค เคชเคฐ เคเฅเค เค เคเค เคจเคนเฅเค เคเคพเคเคพ เคเคพเคคเคพ เคนเฅเฅค
Yes. The Management Aptitude Test (MAT) follows a 1/4th negative marking scheme (+1 mark for every correct response and -0.25 mark penalty for every wrong response).
Exam: SSC CGL Tier 1 โข Negative Ratio: 1/4th (25%)
| Total Questions | Attempted | Correct | Wrong | Unattempted | Break-Even (BEA) | Marks/Attempt |
|---|---|---|---|---|---|---|
| 100 | 85 | 70 | 15 | 15 | 80.00% | +1.56 |
Your accuracy is well above the break-even threshold.
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