# Aptitude
All Aptitude notes →Study & Practice Strategy
Spaced practice, error logging, and the speed-vs-accuracy tradeoff for aptitude prep.
Test Format & Scoring
Sectional cutoffs, negative marking math, and adaptive vs. fixed-form test formats.
What Aptitude Tests Actually Assess
Why aptitude rounds still gate MAANG-adjacent hiring pipelines even when the core interview loop is DSA and system design.
Data Interpretation
Reading tables, bar/line/pie charts, and caselets accurately under time pressure.
Number Systems, HCF & LCM
Divisibility rules, remainders, factors, and LCM/HCF shortcuts for speed-solving.
Percentages, Profit-Loss & Interest
Percentage-change chains, discount and markup, and simple vs. compound interest problems.
Permutations, Combinations & Probability
Counting principles, arrangement vs. selection, and basic probability for exam-speed solving.
Ratios, Averages & Mixtures
Ratio-proportion reasoning, weighted averages, and alligation/mixture problems.
Time-Speed-Distance & Time-Work
Relative speed, trains and boats-streams problems, and work-rate combination problems.
Blood Relations, Direction Sense & Coding-Decoding
Family-tree notation, compass-direction tracking, and letter/number coding-decoding schemes.
Puzzles & Seating Arrangement
Linear and circular seating arrangements, grid puzzles, and data-sufficiency framing.
Series & Analogies
Number and letter series patterns, verbal and non-verbal analogies, and odd-one-out questions.
Syllogisms & Statement-Based Reasoning
The Venn-diagram method for syllogisms, plus statement-conclusion and statement-assumption questions.
Grammar & Sentence Correction
Error-spotting categories, sentence improvement, and common subject-verb and tense traps.
Para Jumbles & Sentence Ordering
Spotting the mandatory pair or opening sentence, and reading coherence signals to reorder a passage.
Reading Comprehension
Passage-first vs. question-first strategy, and inference questions vs. explicit-detail questions.
Vocabulary: Synonyms, Antonyms & Usage
One-word substitution, idioms, and contextual word usage versus rote memorization.
Company-Specific Patterns
How Amazon OA, Google NQT/STEP, Microsoft, and vendor screens like AMCAT/CoCubes/Mettl structure their aptitude rounds.
Error Log & Review Framework
Post-mock root-causing: careless errors vs. conceptual gaps vs. time-pressure errors.
Full-Length Mock Test Format
Simulating real sectional timing and interface constraints instead of untimed topic practice.
Timing & Section Strategy
Time-boxing per section, skip/return heuristics, and the expected-value math behind negative marking.
Aptitude
A book-shaped table of contents for aptitude test prep: quantitative aptitude, logical reasoning, verbal ability, and mock-test strategy for the aptitude rounds that still gate MAANG-adjacent hiring pipelines.