Aptitude Topics
Coding Decoding
Coding Decoding is a logical reasoning topic where words, letters, or numbers are encoded based on a specific rule or pattern. You must decode the pattern to find the correct answer.
Fundamental Principles
Coding
Transforming a word, number, or symbol into another form using a rule.
Decoding
Identifying the original word or logic from the coded form.
Essential Formulation Tips
- Check alphabetical positions (A=1, B=2...).
- Look for consistent patterns.
- Break words into individual letters.
- Practice different coding types.
Shortcut Execution Techniques
- Use forward/backward shifts (e.g., +1, -2).
- Check reverse coding patterns.
- Use elimination method in MCQs.
- Look for symmetry or repetition.
Contextual Inquiries (FAQs)
Q: What is the fastest way to solve coding decoding?
A:
Q: Which type is most common?
A:
Example Breakdown: Letter Coding
Basic shift coding.Problem QueryIf CAT = DBU, then DOG = ?
Step-By-Step Solution Path
C→D (+1), A→B (+1), T→U (+1).
Apply same rule: D→E, O→P, G→H.
Final Answer: EPH.
Analytical Hint: Check +1 pattern.
Example Breakdown: Reverse Coding
Simple logic.Problem QueryIf ABC = CBA, then XYZ = ?
Step-By-Step Solution Path
Pattern: Reverse order.
XYZ → ZYX.
Final Answer: ZYX.
Analytical Hint: Check reverse.
Example Breakdown: Number Coding
Basic number logic.Problem QueryIf 123 = 6, then 456 = ?
Step-By-Step Solution Path
1+2+3 = 6.
4+5+6 = 15.
Final Answer: 15.
Analytical Hint: Check sum.
Coding Decoding Practice Questions
Solve important coding decoding questions for SSC, banking, CMAT, and placement exams.
Q1. If PEN = QFO, then BOOK = ?
Q2. If 246 = 12, then 135 = ?
Q3. If ABCD = DCBA, then MNOP = ?