Logical Reasoning and Analytical Ability
Recurring question families
Expect syllogisms, blood relations, linear and circular seating, direction sense, coding–decoding, number and letter series, analogies, ranking and order, clocks and calendars, and statement-based items (assumption, conclusion, course of action, cause–effect). Analytical puzzles - floor, scheduling and grouping arrangements - usually carry the highest marks per question and the highest time cost.
Traps that cost marks
- Syllogism reversibility: 'All A are B' does not give 'All B are A'. 'Some A are B' does give 'Some B are A'.
- Circular seating orientation: if people face the centre, 'left' is clockwise; if they face outward, it is anticlockwise. The paper often mixes the two in one puzzle.
- Either–or conclusions: valid only when two complementary conclusions cannot both be true but one must be.
- Direction sense: the answer to 'which direction is he facing' depends on the turns, not the final displacement.
- Statement–assumption: an assumption must be necessary for the statement, not merely plausible or related.
Worked example (syllogism)
Statements: All pens are books. Some books are red.
Draw the minimal Venn diagram: the 'red' books may sit entirely outside the pen circle. So the conclusion 'Some pens are red' is not valid. A conclusion is accepted only if it holds in every possible diagram consistent with the statements.
Method rule of thumb
For arrangements, fix the most constrained clue first (a named end seat, a fixed pair), draw positions as blanks, and eliminate as you go. Never hold a puzzle in your head - the paper rewards the candidate who writes the grid.