Calculate your practice score.
Enter the positive marks awarded per question and the negative penalty deducted per error. Review net marks and break-even probability.
Estimate your score.
Enter your responses to calculate net marks and penalty deductions.
60 correct · 20 wrong · 20 unattempted
120.00
−10.00
75.00%
80.00%
Scoring reference for your mock
These editable defaults are for a general practice calculation. Set them to match the exam paper you are reviewing; official patterns and rules can vary by cycle, paper, and section.
| Parameter | Page preset | How to use it |
|---|---|---|
| Questions | Editable | Choose the total for your practice paper |
| Correct answer | +1 mark | Editable calculator value |
| Wrong answer | −0 marks | Editable calculator value |
| Duration | Editable | Practice timer default |
| Options | 4 | Practice sheet layout |
Score calculation formula
Net score = (correct × 1) − (wrong × 0)
Example: 6 correct and 2 wrong yields 6.00 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 0.00%.
| Choices left | Chance correct | Expected marks | Estimate |
|---|---|---|---|
| 4 of 4 | 25.0% | +0.25 | No penalty in this preset |
| 3 of 4 | 33.3% | +0.33 | No penalty in this preset |
| 2 of 4 | 50.0% | +0.50 | No penalty in this preset |
| 1 of 4 | 100.0% | +1.00 | No penalty in this preset |
This is a mathematical probability estimate under uniform assumption, not official test strategy.
Frequently asked questions
How is my practice score calculated?
Multiply correct answers by the positive mark value, then subtract wrong answers multiplied by the penalty. Blank answers contribute zero to this estimate.
Can I change the scoring values?
Yes. The question total, marks per correct answer, penalty, and answer counts are editable in the calculator.
What does break-even accuracy mean?
At the default +1 mark and −0 marks values, break-even accuracy is 0.00%. This probability threshold assumes those values apply uniformly to every question.
Does the estimate include official exam adjustments?
No. Check the current exam notice for sectional rules, normalization, qualifying papers, and the official treatment of blank or multiple marked answers.
Expected value when eliminating choices
Expected value = (chance correct × positive marks) − (chance wrong × penalty). Break-even accuracy with these settings is 0.00%.
| Choices left | Chance correct | Expected marks | Estimate |
|---|---|---|---|
| 4 of 4 | 25.0% | +0.25 | No penalty in this preset |
| 3 of 4 | 33.3% | +0.33 | No penalty in this preset |
| 2 of 4 | 50.0% | +0.50 | No penalty in this preset |
| 1 of 4 | 100.0% | +1.00 | No penalty in this preset |
This is a mathematical probability estimate under uniform assumption, not official test strategy.
Frequently asked questions
How is my practice score calculated?
Multiply correct answers by the positive mark value, then subtract wrong answers multiplied by the penalty. Blank answers contribute zero to this estimate.
Can I change the scoring values?
Yes. The question total, marks per correct answer, penalty, and answer counts are editable in the calculator.
What does break-even accuracy mean?
At the default +1 mark and −0 marks values, break-even accuracy is 0.00%. This probability threshold assumes those values apply uniformly to every question.
Does the estimate include official exam adjustments?
No. Check the current exam notice for sectional rules, normalization, qualifying papers, and the official treatment of blank or multiple marked answers.