🔐 Coding Decoding - Formula Sheet

🎯 Letter Position Values

Forward Positions

A=1, B=2, C=3, D=4, E=5, F=6, G=7, H=8, I=9, J=10
K=11, L=12, M=13, N=14, O=15, P=16, Q=17, R=18, S=19, T=20
U=21, V=22, W=23, X=24, Y=25, Z=26

Backward Positions

A=26, B=25, C=24, D=23, E=22, F=21, G=20, H=19, I=18, J=17
K=16, L=15, M=14, N=13, O=12, P=11, Q=10, R=9, S=8, T=7
U=6, V=5, W=4, X=3, Y=2, Z=1

📊 Coding Types

Direct Letter Coding

Each letter replaced by specific code letter
DOG → GJT

Number Coding

Letters replaced by their position values
CAT → 3-1-20

Symbol Coding

Letters replaced by symbols
A→@, B→#, C→$, etc.

Reverse Coding

Word written backwards + coded
TIGER → REGIT → SJHJS

🔢 Common Patterns

Position Operations

+2: A→C, B→D, C→E
-1: D→C, E→D, F→E
×2: A→B, B→D, C→F
Opposite: A→Z, B→Y, C→X

Mathematical Operations

Letter Position + Constant
Letter Position × Constant
Letter Position ÷ Constant

⚡ Solving Steps

1. Identify the coding type
2. Find the pattern/operation
3. Apply to each letter individually
4. Verify with complete example
5. Apply to question word

📝 Quick Tips

1. Check forward/backward positions
2. Look for mathematical operations
3. Consider opposite letters (sum=27)
4. Check for reverse patterns
5. Verify pattern before applying

Master Coding Decoding - Find the pattern, verify, apply! 🔐