Quick-Win Techniques by GMATz

Shorter Prep | Higher Speed | Higher Scores

Techniques: Subjects

Quant - PS and DS

Integers – consecutive, prime, odd/even, positive/negative/zero, ascending/descending order
Absolute Values – absolute values and inequalities, conditions for addition/subtraction of absolute variables, square root of a variable
Summation – summation equations for specific arithmetic series, mean and median
Quadratics – quadratics for speed calculations, roots of quadratics, graphical interpretations
Factors – divisibility, LCM, GCF, prime factorization, no. of factors
Remainder – remainder form, remainder and decimal, remainder and arithmetic series
Factorials – factorial properties, prime factorization of factorials, factorial and prime
Geometry – perimeter, area, surface area, volume, ratio of area and volume, triangle, circle, cube
Overlapping – two groups, three groups, overlaps of two groups or EXACTLY two groups, neither group
Standard Deviation – scaling of SD, SD and outliers, min-SD theorem, SD of population, SD of binary variables of equal population
Combinatorics – order, duplication, order fallacy, binary, special properties of nCr and nPr, scenarios of coins, passwords, cards, balls, dice, teams, polygons
Probability – duplication, right use of “1-P” method, symmetricity, conditional probability, non-mutually exclusive probability

Trivium Rule – Grammar, Logic, Style
Subject-verb Agreement – subjective clause, subject position, modifier
Parallelism – verb, noun, modifier, fake parallelism
Idioms – 30 common idioms and pitfalls
Pronouns – singular, plural, ambiguity, “this”
Verb – tense, transitive/intransitive
Noun – singular/plural, countable/uncountable, collective noun, "v-ing" as noun
Comparison – like-to-like comparison in nature and plurality, key words of comparison
Subjunctive Mood – five “wish verbs”, impossible assumption
Sentence Structure – subject-verb-object, nominative absolute, "comma + v-ing"
Special Rules – such as, whether, rather than, because, although, being, able
Style – active, verb, short, no redundancy

Logic Framework – assumption, evidence, conclusion
Weakening – counter evidence, alternative explanation, irrelevancy, fake weakening, two weakening options
Strengthening – supporting evidence, supplementary evidence, reference case, assumption, weakening approach, two strengthening options
Assumption – missing evidence, assumption confirmation/negation test
Conclusion – “A+B=C”, contradiction, paraphase, quantitative (ratio, proportion, rate, mean etc)
Inference – differences with conclusion, over-inference
Evaluation – quantitative, qualitative (=assumption)
Logical Flaws – sample bias, different baseline, hasty generalization, suppressed evidence, false cause
General Requirements – direct and straightforward, no absolute words in conclusions/inference, reference case not valid for weakening, linkage between evidence and conclusion, hit key points in evidence

Reading – skimming techniques
Theme – science, politics, business, social, history, arts
Tone – neutral, evaluative, critical
Logical Structure – inflexion, causality, conditional, parallel, progression
Ideation – stated or inferred ideas, unmentioned ideas, primary purpose of passage
Key Words – words repeatedly used, difficult words, "However"
CR Type – weakening, strengthening, assumption, conclusion, inference, evaluation

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