When should I guess in NEET and when should I just skip the question?
With a mark deducted for each wrong answer, blind guessing and blanket skipping both cost marks. How do you decide quickly?
Commons Community Team
14 Sept 2026 Β· 1 min read
This one comes up every week: with +4 for a right answer and -1 for a wrong one (check the current NTA notice for the scheme), when should you guess and when should you leave a question blank? Some of you skip anything you are unsure of and lose marks you could have had. Others guess everything and watch negative marks pile up. The tricky case is the "I know two options are wrong" question. And how do you decide fast, with the clock running? Tell us how you handle it.
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[+][β]Commons Mock & PYQ DeskTeamΒ· 1mo ago
The decision is arithmetic. If you pick an answer that has probability of being right, the expected gain is
So guessing has a positive expected value whenever , better than one chance in five.
Options left Expected marks 4 (blind) 0.25 +0.25 3 about 0.33 about +0.67 2 0.50 +1.5 This holds for single-correct questions with four options. Two cautions. First, the table only applies if the options you removed were truly wrong; people tend to overrate their eliminations. Second, expected value describes many questions, not one. A few wrong guesses in a row is normal.
[+][β]Commons Dropper DeskTeamΒ· 1mo ago
Pre-decide a rule and test it across a month of mocks. For example: guess only with at least one option eliminated for a reason; skip at zero. Keep the rule that gives you better marks, not the one that feels braver.
[+][β]Commons Biology DeskTeamΒ· 1mo ago
In Biology the useful guessing skill is elimination from partial knowledge. On a match-the-column or statement-type question you rarely need to know everything. If you are sure that Sertoli cells nourish developing sperm cells, any option that pairs them with another function is out, even if you do not know the rest.
For "which of the following statements is correct", judge each statement on its own and mark it true, false or unsure. Two firm "false" marks can leave you with one or two options.
A caution: tricks like "the longest option is usually right" or "avoid extreme words" are unreliable, and leaning on them turns elimination into superstition. Eliminate on knowledge, not on style. Guess only when you have removed something for a reason.
[+][β]Commons Physics DeskTeamΒ· 1mo ago
Physics lets you eliminate with tools that need no memory.
- Dimensions: if an option cannot give the right unit, remove it. A time period written as fails at once.
- Limiting cases: push a variable to zero or to a very large value and ask whether the option behaves sensibly.
- Signs and direction: does the answer have the sign the physical situation demands?
- Size: a rough estimate with powers of ten can cut options that differ by a large factor.
Decide within about a minute. If you have a partial calculation and two options left, that is a good guess. If you have no idea how to begin, skip it, since a blind guess is worth only a small positive expectation and the minutes are worth more on a question you can crack.
[+][β]Commons Wellbeing DeskTeamΒ· 1mo ago
Negative marking is as much emotional as mathematical. Some people freeze because one wrong answer feels like a punishment. Others get angry after a wrong guess and carry that into the next ten questions. Both cost marks.
The cure is to decide your rule before the paper, in calm conditions, so you are not negotiating with fear mid-exam. Example: "I guess only if I have removed at least one option for a reason." Then follow it, and treat a wrong guess that met the rule as a fair decision with a bad outcome, not a personal failure.
Practise this in mocks. Notice how you feel after a wrong guess and jot it in the margin. A couple of slow breaths between questions helps more than it sounds.
[+][β]Commons Strategy DeskTeamΒ· 1mo ago
We agree with the arithmetic, with one polite disagreement: the break-even of one in five is easy to state, but most people are less accurate than they think about their "two options left" situations. The way to find out is to measure yourself.
Keep a guess log across several mocks. For every guess, note how many options remained and whether it was right. After four or five tests, work out your hit rate with two options left and with three. If your "two left" guesses are right far less than half the time, your elimination is weaker than you assumed and your rule should be stricter. If they are right more often, you can loosen it.
Share your own rules in the comments. The range of approaches is interesting.
