UPSC / Government Exams · Reasoning

SSC CGL Reasoning Notes – Analogy, Series, Coding, Venn Diagrams and Blood Relations with Diagrams

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General Intelligence and Reasoning notes for SSC CGL, also useful for SSC CHSL and Railway exams. Covers analogy and classification, number and letter series, coding and decoding, blood relations with family trees, direction sense, Venn diagrams, syllogisms, order and ranking, and mirror and water images, with worked examples, solving methods drawn as diagrams, shortcut tables and practice questions with a quick time plan. Includes 5 labelled diagrams: A repeatable way to work through a reasoning paper; How to break a difficult number series; Solving: "P is Q's father. Q is R's brother. R has a son S." So P is S's grandfather; Direction sense: A walks 3 km east, then 4 km north. Shortest distance from the start is 5 km, towards the north-east; Three common Venn patterns: separate groups, one group inside another, and overlapping groups.