General Intelligence and Reasoning
General Intelligence and Reasoning tests pattern recognition: analogy, number and letter series, coding-decoding, blood relations, direction sense, syllogism, ranking, and spatial reasoning such as mirror/water images and figure counting.
Core rules
- Alphabet positions: A = 1 … Z = 26. For reverse position, use 27 − position. EJOTY (5, 10, 15, 20, 25) speeds up placement.
- Series: compute first differences; if they are not constant, check second differences, squares, cubes, or alternating patterns.
- Coding: test one rule across all letters before applying it; common rules are shift, reversal, position-value concatenation and substitution.
- Direction sense: draw the path; net displacement uses right angles, and left/right depends on facing direction.
- Syllogism: use Venn diagrams; a conclusion is valid only if it follows in every possible diagram.
Worked example
If CAT = 3120, what is DOG? Use alphabet positions: C = 3, A = 1, T = 20, concatenated as 3120. Then D = 4, O = 15, G = 7, so DOG = 4157. The rule is position-value concatenation, not arithmetic addition.
Traps
Do not assume a single example proves a coding rule; check the whole word. In series, do not stop at the first difference if it fails. In direction questions, reorient left/right after a turn. In syllogism, “some” does not imply “all”, and a possibility conclusion needs at least one valid diagram.