Analogy — SSC CGL Reasoning
An analogy question hands you one completed relationship (A : B) and asks you to reproduce it (C : ?). The entire skill is naming the relationship precisely — "related to" is never enough. SSC's relationships come from a stable catalogue: this chapter is that catalogue, with the traps marked.
1. What SSC actually asks
Tier 1: 3–4 questions · Tier 2: 3–5 questions. Four formats:
- Semantic (word) analogy — Doctor : Stethoscope :: Carpenter : ? (worker : tool)
- Letter analogy — CAT : FDW :: DOG : ? (each letter +3)
- Number analogy — 8 : 72 :: 9 : ? (n : n(n+1) → 90)
- Figural analogy — figure transforms (rotation, mirroring, element count) — see the Non-Verbal chapter for the transform kit.
2. The semantic relationship catalogue
| Family | Example | Watch for |
|---|---|---|
| Worker : tool | Sculptor : Chisel | tool, not product |
| Worker : product | Cobbler : Shoes | product, not tool |
| Product : raw material | Cloth : Yarn · Butter : Milk | direction matters |
| Instrument : measures | Barometer : Pressure · Odometer : Distance | Hygrometer=humidity, Sphygmomanometer=BP |
| Animal : young | Cow : Calf · Horse : Foal | Lion : Cub, Sheep : Lamb, Frog : Tadpole |
| Animal : home | Horse : Stable · Bee : Apiary | Rabbit : Burrow, Eagle : Eyrie |
| Male : female | Drone : Bee (queen/worker) · Stag : Doe | |
| Study : subject | Ornithology : Birds · Seismology : Earthquakes | Entomology=insects, Etymology=word origins |
| Part : whole | Chapter : Book · Petal : Flower | |
| Degree/intensity | Warm : Hot :: Smile : Laugh | keep the direction of intensification |
| Cause : effect | Germ : Disease · Drought : Famine | |
| Synonym / antonym pairs | Abundant : Scarce | first decide WHICH one it is |
| Country : capital/currency | Japan : Yen · Bhutan : Ngultrum | GA overlap — free marks if your static GK is solid |
| State : dance/festival | Kerala : Kathakali | ditto |
The precision rule: state the relation as a full sentence — "a sculptor uses a chisel". Then test each option against that exact sentence. Options that are merely "associated" fail the sentence test — and those are precisely SSC's distractors.
3. Letter analogies — the arithmetic of the alphabet
Assign positions A=1 … Z=26 and find the per-letter shift or pattern:
- Uniform shift: CAT → FDW is +3, +3, +3.
- Mixed shifts: LEG → NGI is +2 each; but SSC also uses +1, +2, +3 (increasing) or +2, −2, +2 (alternating).
- Reversal pairs (the EJOTY-killer): A↔Z, B↔Y, C↔X … the pair positions sum to 27. Test: if letter pairs sum to 27, it's the mirror-alphabet relation.
- Skip patterns: BDF : GIK (consecutive alternates, block shifted +5).
Speed anchors — memorise: E=5, J=10, O=15, T=20, Y=25 ("EJOTY"), and the mirror rule ().
Write positions under the letters as you read; never track shifts mentally in the exam hall.
4. Number analogies — the operations menu
Given , test in this order (cheapest first):
- (constant difference)
- (multiple — 7 : 35 is ×5)
- (powers and near-powers: 8 : 72 is … also — same thing)
- digit operation (sum, product, reversal: 42 : 8 via 4+2… or 4×2 — disambiguate with the second pair!)
- Combined: (6 : 35 as )
The disambiguation rule: one pair rarely pins the rule (42 : 8 could be digit-product or difference-of-34). The second given pair or the option set decides. Always verify your rule on both given pairs before applying it.
Number-triad analogies (Tier 2 flavour): (4, 20, 25) :: (6, 42, 49) — here , . Treat the triad as one machine; test middle-from-first, last-from-middle.
5. Solved PYQ-style examples
Q1. Ornithologist : Birds :: Entomologist : ? Solution. Studies-subject relation → Insects. (Etymologist = word origins is the planted trap.)
Q2. ACEG : ZXVT :: BDFH : ? Solution. Each letter mirrored (sum 27): A↔Z, C↔X, E↔V, G↔T. So B↔Y, D↔W, F↔U, H↔S → YWUS.
Q3. 11 : 132 :: 15 : ? Solution. , i.e. → 240.
Q4. 7 : 50 :: 11 : ? Solution. → 122.
Q5. Moderate : Extreme :: Whisper : ? Solution. Intensity escalation → Shout. (Not "speak" — the degree must escalate, not just relate.)
Q6. 3 : 27 :: 4 : ? Solution. Could be (→ 64) or (→ 36). If both appear in the options, look again: SSC convention prefers the power relation when the base pair is exactly — but check the options: only one of 64/36 will be present in a fair question. If both are present, prefer the relation that also survives any third given pair.
6. Exam protocol
- Say the relation as a sentence (semantic) or an equation (letter/number) before looking at options.
- Verify on every given pair — a rule that fits one pair is a hypothesis, not an answer.
- Letter questions: write positions under letters; use EJOTY + the 27-mirror.
- Number questions: run the operations menu in order; stop at the first rule that fits all given data.
- Budget 25–30 seconds. Analogy is a speed bank for the section — bank it.
