One-fourth penalty (1/4) calculator
One-fourth of the marks for a correct answer is deducted for each wrong answer. Enter your question counts to review expected value and penalty trade-offs.
Estimate your score.
Enter your responses to calculate net marks and penalty deductions.
60 correct · 20 wrong · 20 unattempted
60.00
−5.00
75.00%
80.00%
Exams using a 1/4 (one-fourth penalty) penalty
These competitive exams feature a 1/4 penalty deduction per incorrect response. Select an exam below to use its preset marks calculator or open a timed online OMR practice sheet.
NEET UG
+4 marks / −1 penalty · 180 questions
JEE Main · Paper 1
+4 marks / −1 penalty · 75 questions
SSC CGL Tier I
+2 marks / −0.5 penalty · 100 questions
SSC CHSL Tier I
+2 marks / −0.5 penalty · 100 questions
Banking PO Prelims (IBPS / SBI)
+1 marks / −0.25 penalty · 100 questions
How this penalty is calculated
One-fourth of the marks for a correct answer is deducted for each wrong answer. These are editable defaults for a scoring estimate. Confirm the rule for the exact examination, paper, and cycle before applying it.
| Value | Default | Meaning |
|---|---|---|
| Correct response | +1 mark | Added per correct answer |
| Wrong response | −0.25 marks | Deducted per wrong answer |
| Blank response | 0 marks | No correct or wrong response entered |
Score calculation formula
Net score = (correct × 1) − (wrong × 0.25)
Example: 6 correct and 2 wrong yields 5.50 marks before official normalization or section qualifying rules.
Expected value when eliminating choices
Expected value = (chance correct × positive marks) − (chance wrong × penalty). Break-even accuracy with these settings is 20.00%.
| Choices left | Chance correct | Expected marks | Estimate |
|---|---|---|---|
| 4 of 4 | 25.0% | +0.06 | Positive expected value |
| 3 of 4 | 33.3% | +0.17 | Positive expected value |
| 2 of 4 | 50.0% | +0.38 | Positive expected value |
| 1 of 4 | 100.0% | +1.00 | Positive expected value |
This is a mathematical probability estimate under uniform assumption, not official test strategy.
Frequently asked questions
How does the one-fourth penalty affect my score?
This calculator awards +1 mark per correct answer and deducts 0.25 marks for each incorrect response. Blank answers receive 0 marks.
What is the break-even guessing threshold for this penalty?
With 4 options, break-even accuracy is 20.00%. With four equally likely options, guessing has a positive expected value (+0.06 marks per 1 mark); break-even occurs with five options.
Which competitive exams use this penalty?
Common exams following this penalty structure include: NEET UG, JEE Main, Banking exams, SSC CGL / CHSL. Use our dedicated exam calculators for paper-specific rules.
What is the net score formula?
Net Score = (Correct Answers × 1) − (Incorrect Answers × 0.25). Example: 70 correct and 15 wrong yields 66.25 marks.
Expected value when eliminating choices
Expected value = (chance correct × positive marks) − (chance wrong × penalty). Break-even accuracy with these settings is 20.00%.
| Choices left | Chance correct | Expected marks | Estimate |
|---|---|---|---|
| 4 of 4 | 25.0% | +0.06 | Positive expected value |
| 3 of 4 | 33.3% | +0.17 | Positive expected value |
| 2 of 4 | 50.0% | +0.38 | Positive expected value |
| 1 of 4 | 100.0% | +1.00 | Positive expected value |
This is a mathematical probability estimate under uniform assumption, not official test strategy.
Frequently asked questions
How does the one-fourth penalty affect my score?
This calculator awards +1 mark per correct answer and deducts 0.25 marks for each incorrect response. Blank answers receive 0 marks.
What is the break-even guessing threshold for this penalty?
With 4 options, break-even accuracy is 20.00%. With four equally likely options, guessing has a positive expected value (+0.06 marks per 1 mark); break-even occurs with five options.
Which competitive exams use this penalty?
Common exams following this penalty structure include: NEET UG, JEE Main, Banking exams, SSC CGL / CHSL. Use our dedicated exam calculators for paper-specific rules.
What is the net score formula?
Net Score = (Correct Answers × 1) − (Incorrect Answers × 0.25). Example: 70 correct and 15 wrong yields 66.25 marks.