🔤🔢 Alphanumeric Series - Formula Sheet

🎯 Alphabet Positions

Forward Position

A=1, B=2, C=3, …, Z=26

Backward Position

Z=1, Y=2, X=3, …, A=26

Opposite Letters

A↔Z, B↔Y, C↔X, …, M↔N Sum of opposite positions = 27

📊 Pattern Types

Arithmetic Progression

Add/Subtract constant: +2, +3, +1, +2, +3, +1…

Geometric Progression

Multiply/Divide: ×2, ×3, ×2, ×3…

Alternating Patterns

+2, -1, +3, -2, +4, -3…

Position-based

Square positions: 1², 2², 3², 4²… Cube positions: 1³, 2³, 3³, 3³…

⚡ Solving Steps

1. Separate: Letters and numbers
2. Analyze: Each sequence separately
3. Combine: Find the relationship
4. Verify: Check with complete sequence

🔢 Number Patterns

Common Series

Even: 2, 4, 6, 8, 10… Odd: 1, 3, 5, 7, 9… Prime: 2, 3, 5, 7, 11… Fibonacci: 0, 1, 1, 2, 3, 5… Square: 1, 4, 9, 16, 25… Cube: 1, 8, 27, 64, 125…

Letter Patterns

Skip Letters

A, C, E, G… (+2) A, D, G, J… (+3)

Vowel/Consonant

Vowels: A, E, I, O, U Consonants: B, C, D, F, G…

Master Alphanumeric Series - Separate, analyze, combine! 🔤🔢