GMAT Focus · Verbal reasoning
GMAT critical reasoning: a guide to the question types
GMAT critical reasoning practice is built around a small set of question families — assumption, strengthen, weaken, inference, evaluate, resolve-the-paradox, and boldface — each of which asks you to do one specific thing with a short argument. Critical Reasoning sits alongside Reading Comprehension in the GMAT Focus Verbal section, which has 23 questions in 45 minutes and contains only those two question types, every one with five options. Once you can reliably split an argument into its conclusion, premises, and hidden assumption, the CR question types stop feeling random and start telling you exactly what to look for.
Where CR sits in GMAT Focus Verbal
Critical Reasoning is one of just two question types in the GMAT Focus Edition Verbal Reasoning section, the other being Reading Comprehension. The section runs 23 questions in 45 minutes, of which roughly 9 to 10 are Critical Reasoning. Every question presents five answer options, and the section is computer-adaptive, so answering carefully early matters. Note that Sentence Correction, a fixture of the legacy GMAT, was retired when the exam moved to the Focus Edition — if a resource still drills grammar-editing questions, it is out of date. CR is pure argument analysis: you read a short stimulus, usually two to five sentences, and answer a single question about its logic.
Argument structure: conclusion, premise, assumption
Every CR stimulus is an argument, and almost every CR question is really testing whether you found its parts. The conclusion is the main claim the author wants you to accept. The premises are the stated facts offered as support. The assumption is the unstated fact the argument silently depends on — the bridge between the premises and the conclusion. Your first move on any CR question is to locate the conclusion (words like "therefore", "thus", "clearly" often flag it), confirm what evidence supports it, and then ask what has to be true for that evidence to actually justify the claim. That gap is where the correct answer usually lives, whichever family the question belongs to.
The CR question types and how to attack each
The seven families below cover the overwhelming majority of CR questions. The key habit is to read the question stem first so you know which job you are doing, then attack the argument accordingly.
| Question type | What it asks | How to attack it |
|---|---|---|
| Assumption | Find the unstated fact the argument needs to hold. | Isolate the conclusion-to-premise gap. Use the negation test: if negating a choice destroys the argument, it is the assumption. |
| Strengthen | Which new fact makes the conclusion more likely? | Find the gap, then pick the option that closes it or rules out an alternative explanation. Ignore options that restate the premises. |
| Weaken | Which new fact makes the conclusion less likely? | Attack the assumption. The best answer usually introduces an alternative cause or breaks the link between evidence and claim. |
| Inference | What must be true given the statements? | Stay inside the text. The answer is what the stimulus guarantees, not what is merely plausible or likely. |
| Evaluate | What question, if answered, tests the argument most? | Look for the option whose two possible answers would swing the conclusion in opposite directions. |
| Resolve the paradox | Reconcile two facts that seem to conflict. | Keep both facts true. The right answer explains how both can hold at once without denying either. |
| Boldface (role) | Identify the function of highlighted sentences. | Label each bold part as premise, conclusion, opposing view, or evidence, then match the option to those roles. |
Assumption, strengthen, and weaken: the core trio
These three families are the heart of CR and they share one engine: the gap between premises and conclusion. For an assumption question, you name the gap directly — the fact the argument takes for granted. The negation test is your safeguard: negate the candidate assumption, and if the argument collapses, it was necessary; if nothing changes, it was not. A strengthen question asks you to pour concrete into that gap, and a weaken question asks you to knock the bridge out, most often by supplying an alternative explanation for the evidence. Because all three depend on spotting the same gap, if you train yourself to find assumptions quickly, strengthen and weaken questions become far easier.
Inference and evaluate: staying inside the text
Inference questions reverse the usual direction: instead of judging the argument, you draw a conclusion the stimulus forces. The correct answer must be true given the statements — not probable, not reasonable, but guaranteed. This is where precise reading pays off, because the trap answers are the ones that feel true in the real world but go one step beyond what the text actually supports. Evaluate questions ask which piece of information would most help you judge the argument; the right choice is a question whose two possible answers would push the conclusion in opposite directions. Both types reward reading each clause exactly, which is the same discipline RC trains.
Resolve-the-paradox and boldface
Resolve-the-paradox questions give you two facts that appear to contradict each other and ask for the option that makes both make sense simultaneously. The mistake is choosing an answer that denies one of the facts; the correct answer respects both and supplies the missing context that lets them coexist. Boldface questions, sometimes called describe-the-role questions, highlight one or two sentences and ask what role each plays in the argument. Attack them by labelling each bold portion before you read the options: is it the author's conclusion, a premise supporting it, a position the author argues against, or evidence for an opposing view? With the roles pinned down, the abstract answer choices become easy to match.
Common CR traps to avoid
The GMAT builds its five options around predictable temptations. The most frequent trap is the out-of-scope answer — true, sensible, but about something the argument never addressed. Another is the reversal: on a weaken question, an option that actually strengthens the argument, planted to catch readers who lost track of the task. On inference questions, watch for choices that overstate the text with an absolute word like "all" or "never" where the passage only warranted "some". And on strengthen and weaken questions, beware answers that merely restate a premise: repeating given evidence neither adds nor removes support. Reading the question stem first, and keeping the exact task in mind while you evaluate, is the simplest defence against all of these.
How RC practice sharpens your CR
PracticeRC focuses on Reading Comprehension rather than generating standalone CR sets — but the two skills are closer than they look. Critical Reasoning is, at bottom, extremely precise reading of a very short argument: separating claim from evidence, tracking exactly what a clause does and does not say, and refusing to add information the text never gave you. Those are the same muscles that RC trains at greater length. By practising RC on dense, argument-heavy passages, you build the reading precision that CR then rewards on a smaller scale.
Start with the full GMAT verbal preparation guide for the section-wide strategy, drill your reading on GMAT RC practice, and study the full taxonomy of reading question families in RC question types explained. The more exactly you can read a paragraph, the faster CR arguments come apart in your hands.
Build reading precision on unlimited passages
Paste any article, generate a five-option GMAT-style RC test, and practise reading a single clause exactly — the same precision that critical reasoning demands. Free, unlimited, with per-option explanations.
Frequently asked questions
What are the GMAT critical reasoning question types?
The main GMAT critical reasoning families are assumption, strengthen, weaken, inference, evaluate, resolve-the-paradox, and boldface (describe-the-role). Each asks you to do something different with a short argument — find an unstated link, add or remove support, draw what must be true, identify a decisive test, reconcile two facts, or label the function of highlighted sentences.
How many critical reasoning questions are on the GMAT?
On the GMAT Focus Edition, the Verbal Reasoning section has 23 questions in 45 minutes, containing only Reading Comprehension and Critical Reasoning. Roughly 9 to 10 of those are Critical Reasoning questions. Every question has five answer options. Sentence Correction was retired with the legacy GMAT and is no longer tested.
How do I identify the assumption in a CR argument?
First separate the conclusion from the premises, then look for the gap between them — the unstated fact the argument needs in order to hold. A reliable check is the negation test: negate a candidate assumption, and if the argument falls apart, it was a necessary assumption. If negating it changes nothing, it was not the assumption the question wanted.
Does PracticeRC have critical reasoning practice?
PracticeRC focuses on Reading Comprehension, generating unlimited exam-style RC tests from any article. It does not generate standalone CR question sets, but the reading precision it trains — separating claim from evidence and reading a single clause exactly — is the same skill that CR rewards, so the practice transfers directly.
Train the reading that CR rewards
Open GMAT mode, paste any article, and practise reading a compact argument with near-total precision. Five options, instant scoring, and an explanation for every choice — free and unlimited.