Introduction
Function or role-based analogies test your ability to match items by the specific function one performs for the other. This pattern is crucial because many aptitude questions use tool→action or role→task relationships that require clear identification of purpose.
Pattern: Function or Role-Based Analogy
Pattern
The key concept is: identify the function or role one item performs relative to the other, then apply that same function/role in the second pair.
Step-by-Step Example
Question
Knife : Cut :: Pen : ______
(A) Ink (B) Write (C) Paper (D) Draw
Solution
-
Step 1: Identify the function in the first pair.
A Knife performs the function of cutting - tool → action (purpose). -
Step 2: Apply the same function-role mapping to the second pair.
A Pen performs the function of writing - tool → action (purpose). -
Final Answer:
Write → Option B -
Quick Check:
Knife : Cut (tool → action) and Pen : Write (tool → action) - relationship matches ✅
Quick Variations
1. Tool → Action: Scissors : Cut :: Brush : Paint.
2. Role → Task: Chef : Cook :: Teacher : Teach.
3. Device → Function: Fan : Cool :: Heater : Warm.
4. Instrument → Operation: Microscope : Magnify :: Telescope : Observe.
Trick to Always Use
- Step 1 → Convert the first pair into a short phrase "X → does Y (action/purpose)".
- Step 2 → Test each option by substituting into "C → does ?" and pick the one that yields the same "does Y" relationship.
Summary
Summary
- Express the first pair as a function statement: "X performs Y".
- Look for the option where the second term performs the same type of function.
- Prefer action verbs (write, cut, cook) when mapping tools to their purpose.
- Quickly eliminate options that are components or places rather than functions.
Example to remember:
Knife : Cut :: Pen : Write
Hint: Find the function or purpose performed by the tool.
Common Mistakes: Choosing 'Draw' - brushes are mainly used for painting rather than drawing.