Reasoning – Coding-Decoding Basics (Easy Tricks & Examples)
Coding-Decoding is a simple and scoring topic in reasoning. You just need to understand patterns between letters or numbers.
Basic Idea
In coding-decoding, a word is converted into another form using a pattern.
Example:
CAT → DBU
C → D (+1)
A → B (+1)
T → U (+1)
Alphabet Positions
A = 1, B = 2, C = 3, ... Z = 26
Example:
CAT → 3,1,20
Common Types
- Letter shifting (+1, -1, +2)
- Reverse pattern
- Position-based coding
Easy Examples
Q1:
CAT → DBU
DOG → ?
Answer:
D → E
O → P
G → H
→ EPH ✔
Reverse Coding
Example:
CAT → TAC
Just reverse the word.
Number Coding
Example:
CAT → 3 1 20
Use alphabet positions.
Practice Questions
Q1: DOG → EPH → CAT → ?
Q2: BAT → ? (Reverse)
Q3: SUN → ? (Position)
Answers
Q1: DBU
Q2: TAB
Q3: 19 21 14
Quick Tricks
- Check +1 / -1 pattern first
- Look for reverse pattern
- Use alphabet positions if needed
Final Tip
Coding-decoding becomes easy with practice. Try to identify patterns quickly without overthinking.
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