Reasoning Ability / General Intelligence
Reasoning Ability / General Intelligence in this recruitment exam checks how quickly you can turn a set of conditions into one valid arrangement or conclusion. The usual mix is syllogisms, coded inequalities, linear and circular seating, floor and box puzzles, blood relations, direction sense, coding-decoding, alphanumeric series, and order-ranking.
Core rules
- In syllogisms, treat some as at least one and never convert it into some not. Only a few A are B means some A are B and some A are not B.
- In inequalities, chain the same direction: A ≥ B > C gives A > C. A conclusion is definite only when the chain points one way.
- In seating, fix the facing direction before placing anyone. For inward-facing circles, left is clockwise; for outward-facing, left is anticlockwise.
- In blood relations, draw a tree: squares for males, circles for females, horizontal lines for spouses.
Worked example
Statements: A ≥ B > C ≤ D = E. Conclusion I: A > C. Conclusion II: C ≤ E. Reasoning: A ≥ B and B > C combine to A > C, so I follows. C ≤ D and D = E combine to C ≤ E, so II follows. Both follow.
Traps
Assuming some A are B allows some B are not A; ignoring either-or when two conclusions form a complementary pair; placing people without fixing facing direction; and reading only a few as all.