General Intelligence and Reasoning: pattern recognition under time pressure
General Intelligence and Reasoning in SSC JE is speed-based. Expect analogies, number and letter series, coding-decoding, syllogisms, blood relations, direction sense, seating arrangement, ranking, mirror and water images, paper folding, and embedded or completion of figures. Nearly every item falls into a recognisable type, so your first ten seconds should be spent classifying the problem rather than solving it.
Core patterns
- Series: test differences first, then ratios, then squares, cubes and alternating jumps. Letter series use positions (A = 1 to Z = 26) or reverse pairs (A-Z, B-Y, C-X).
- Coding: align the coded word with the original letter by letter and record the shift with its sign; mixed and alternating shifts are common.
- Syllogism: draw Venn diagrams. Some statements never imply all, and a possibility conclusion holds only if no valid diagram contradicts it.
- Blood relations and directions: draw the tree or the path, mark gender explicitly, and never infer gender from a name.
- Non-verbal: mirror images flip left-right, water images flip top-bottom; in paper folding, unfold in reverse order of the folds.
Worked example
If CANDLE is coded as FDQJOH, how is MIRROR coded? Compare positions: C to F is +3, A to D is +3, N to Q is +3, D to G is +3, L to O is +3, E to H is +3. The shift is a uniform +3. Applying it: M to P, I to L, R to U, R to U, O to R, R to U. The answer is PLUURU.
Traps
Reversing the shift direction and coding instead of decoding; double counting the reference person in ranking questions (14th from the left plus 9th from the right gives 14 + 9 - 1 = 22 people); accepting either-or syllogism conclusions as always valid; and answering the mirror image when the question asks for the water image.