NTS GAT Subject cheat sheet

GAT Subject tests advanced knowledge in one declared discipline; the candidate selects the field at registration, so the syllabus is that discipline's core undergraduate curriculum, not general aptitude.

For science disciplines, expect numerical problems and conceptual items on fundamental laws, units, and definitions; for humanities, expect source interpretation, periodization, and key terms.

Command words matter: 'define' requires a precise statement, 'compare' requires similarities and differences, 'evaluate' requires a judgment with criteria, and 'derive' requires every step.

In subject MCQs, eliminate options that are true but irrelevant to the stem; the correct option must answer the exact question asked, not merely be a correct fact.

Recall exact terminology, symbols, and standard formulas for your discipline; near-miss distractors often swap a sign, a unit, or a technical term.

For quantitative disciplines, check dimensional consistency and limiting cases (zero, infinity) to reject impossible answer choices quickly.

For textual disciplines, identify the author, period, and argument before judging an interpretation; anachronistic or overgeneralized statements are usually wrong.

Subject papers often include application items: apply a principle to a novel scenario rather than reciting the definition.

Time per item is tight; items you know should be answered in under a minute so that calculation- or analysis-heavy items get the remaining time.

Main-idea questions: the correct answer covers the whole passage, not one supporting detail; scope too narrow or too broad is the standard trap.

Inference questions: the answer must follow necessarily from the stated text; reject options that are plausible in real life but unsupported by the passage.

Tone and attitude items hinge on evaluative adjectives and adverbs; neutral reporting versus advocacy is signalled by words such as 'unfortunately', 'remarkably', 'merely'.

Analogies: state the relationship as a precise sentence (e.g., 'A is a tool used by B'), then test each pair against that same sentence.

Sentence completion: use the logical connectors (although, because, moreover, rather) to fix the blank's direction before choosing a word.

Antonym and synonym items: consider the word's part of speech and its secondary meaning; a common meaning may be the distractor.

Passage structure questions ask how paragraphs relate (contrast, example, concession); map each paragraph's function in one phrase before answering.

Eliminate answer choices containing absolute words (always, never, all) unless the passage itself is absolute.

For paired-passage items, identify the point of agreement or disagreement explicitly; the answer must be supported by both passages where asked.

Percent change = (new − old) / old × 100; successive percentage changes do not add: a 20% rise then a 20% fall leaves 96% of the original.

Average (mean) = sum / count; if every value is multiplied by k, the mean and standard deviation are multiplied by k, while the median is also multiplied by k.

Ratios: if a : b = 3 : 5, write a = 3k and b = 5k; a single variable k converts ratio problems into equations.

Work-rate: combined rate = 1/a + 1/b; time together = ab / (a + b) for two workers with individual times a and b.

Simple interest = P × r × t; compound amount = P(1 + r)^t; for compound interest, interest is earned on previously accrued interest.

Distance = speed × time; for average speed over equal distances, average speed = 2xy / (x + y), the harmonic mean, not the arithmetic mean.

Probability of independent events = product of individual probabilities; P(at least one) = 1 − P(none).

Permutations count ordered arrangements: nPr = n! / (n − r)!; combinations count unordered selections: nCr = n! / [r!(n − r)!].

Data interpretation: read axis units and scales first; a graph starting at a nonzero baseline exaggerates differences, so compare actual values, not visual heights.

Grouping games: list entities and slots, then write each rule as a constraint (e.g., 'A and B cannot share a group' means not (A and B together)).

Conditional rules: 'If P then Q' forbids P with not-Q; its contrapositive 'if not Q then not P' is equally valid, but the converse 'if Q then P' is not.

Sequencing games: draw a line of positions; mark fixed placements and 'X before Y' as an arrow, then test the most restrictive rule first.

Use hypothetical scenarios: when a question adds a condition, apply it to the master diagram and propagate consequences before checking options.

In 'must be true' questions, one counterexample eliminates an option; in 'could be true' questions, one valid arrangement confirms an option.

Count only arrangements that satisfy all rules; for 'how many' questions, enumerate systematically by the most constrained entity.

Watch for hidden biconditionals: 'A is selected if and only if B is selected' means A and B are always together or always absent together.

In matching games, a one-to-one correspondence means each entity is used exactly once; track used entities to avoid double assignment.

If two answer choices are logically equivalent under the rules, neither can be the unique correct answer in a single-answer item.