Analogy

Analogy — Study Notes for HSSC CET

Overview

Analogy questions test your ability to identify relationships between pairs of items and apply the same relationship to find a matching pair. The word "analogy" comes from Greek, meaning "proportion" — you're essentially finding proportional relationships between concepts.

In HSSC CET, analogy questions appear regularly in the Reasoning Ability section. They come in three forms: word analogies (testing vocabulary and conceptual relationships), number analogies (testing mathematical patterns), and figure analogies (testing visual pattern recognition). Mastering analogies requires building a mental library of common relationship types and practicing quick pattern identification.

The key skill here is not memorization but pattern recognition. Once you identify the relationship in the given pair, applying it to find the answer becomes straightforward. Most students lose marks not because analogies are difficult, but because they rush and miss subtle relationship distinctions.

Key Concepts

• The Core Structure: Every analogy follows the pattern A : B :: C : D, read as "A is to B as C is to D." Your job is to find the relationship between A and B, then identify which option creates the same relationship with C.
• Direction Matters: The relationship flows in a specific direction. "Doctor : Hospital" means "doctor works in hospital" — reversing to "Hospital : Doctor" changes the meaning entirely.
• First Pair is the Key: Always analyze the given pair completely before looking at options. Identify the precise relationship, not a vague connection.
• Multiple Relationships Possible: Two words can have several relationships. "Pen : Write" could be tool-action, but also "Pen : Ink" is container-content. The question stem defines which relationship applies.
• Number Analogies Follow Mathematical Rules: Look for operations like squares, cubes, addition, multiplication, or digit manipulation applied consistently across pairs.
• Figure Analogies Test Transformation: Elements may rotate, flip, increase/decrease, change shading, or move position. Identify what changes and what stays constant.
• Eliminate by Relationship Type: If the given pair shows a part-whole relationship, options showing cause-effect relationships are immediately wrong.

Formulas / Key Facts

Common Word Analogy Relationships:

Number Analogy Patterns:

• Squares: 3 : 9 :: 5 : 25 (n : n²)
• Cubes: 2 : 8 :: 4 : 64 (n : n³)
• n : n² + 1 pattern: 3 : 10 :: 5 : 26
• n : n² − 1 pattern: 4 : 15 :: 6 : 35
• Sum of digits: 25 : 7 :: 43 : 7
• Product operations: 12 : 2 :: 20 : 0 (product of digits)

Figure Analogy Transformations:

• 90°, 180°, 270° rotation
• Mirror image (vertical/horizontal flip)
• Element addition or removal
• Shading pattern change (filled ↔ empty)
• Size increase or decrease
• Internal element movement

Worked Examples

Example 1 — Word Analogy

Question: Bird : Wing :: Fish : ? (a) Fin (b) Water (c) Swim (d) Scale

Solution:

• Step 1: Identify relationship between Bird and Wing
• A bird uses wings to move (locomotion organ)
• Step 2: Apply same relationship to Fish
• A fish uses fins to move
• Answer: (a) Fin

Example 2 — Number Analogy

Question: 8 : 65 :: 6 : ? (a) 35 (b) 36 (c) 37 (d) 48

Solution:

• Step 1: Find the pattern in 8 : 65
• Try n² + 1: 8² + 1 = 64 + 1 = 65 ✓
• Step 2: Apply to 6
• 6² + 1 = 36 + 1 = 37
• Answer: (c) 37

Example 3 — Figure Analogy

Question: A square with a circle inside transforms to a square with a triangle inside. A pentagon with a star inside transforms to ?

Solution:

• Step 1: Identify the change
• Outer shape: remains same (square → square)
• Inner shape: changes to a different shape (circle → triangle)
• Step 2: Apply to pentagon with star
• Outer shape stays pentagon
• Inner shape changes to a different shape
• Answer: Pentagon with a different inner shape (typically the next logical shape in the pattern given in options)

Common Mistakes

• Reversing the relationship direction: Students see "Mango : Fruit" and think "type of" but then incorrectly match "Animal : Dog" (which is whole-to-part, not part-to-whole). Fix: Always check if the direction matches — Mango is a type of Fruit, so you need X is a type of Y.
• Choosing superficially related words: For "Pen : Paper," students might choose "Book : Library" because both involve reading. But Pen is used ON Paper, while Book is stored IN Library — different relationships. Fix: Define the precise relationship verb (used on, stored in, made of).
• Ignoring mathematical precision in number analogies: Seeing 4 : 16 and assuming "multiply by 4" when it's actually "square of." Both work for 4, but give different answers for other numbers. Fix: Test your hypothesis on the given pair before applying.
• Missing rotation direction in figure analogies: Confusing clockwise 90° with counterclockwise 90° rotation. Fix: Use a reference point in the figure and track its movement precisely.
• Overthinking simple relationships: Looking for complex patterns when the relationship is straightforward synonym or antonym. Fix: Start with the simplest explanation; complicate only if simple doesn't work.

Quick Reference

• Identify the exact relationship before looking at options
• A : B :: C : D means the A-B relationship must equal the C-D relationship
• Common word relationships: synonym, antonym, part-whole, tool-action, worker-workplace
• Number patterns: check squares (n²), cubes (n³), and ±1 variations first
• Figure analogies: track rotation, reflection, shading, and element count
• Direction matters: "Doctor : Hospital" ≠ "Hospital : Doctor"