Coding-Decoding: Full-Length Notes (Letter Shifting, Symbol Coding, Number Coding)
Coding-Decoding: Full-Length Notes (Letter Shifting, Symbol Coding, Number Coding) Introduction to Coding-Decoding Coding-Decoding is a fundamental topic in logical reasoning and aptitude tests, especially for competitive exams. It assesses your ability to decipher patterns and relationships between letters, numbers, or symbols and apply the same logic to decode or encode new information 1 2 3 5 . Mastery of this topic requires understanding the types of coding, recognizing patterns, and practicing a variety of question formats. Types of Coding-Decoding 1. Letter Shifting (Letter Coding) Definition: In letter shifting, each letter in a word is replaced by another letter according to a specific rule. The rule could involve shifting letters forward or backward in the alphabet, reversing the order, or substituting with corresponding letters 1 2 5 6 . Common Patterns: Forward Shifting: Each letter is replaced by the next letter (A→B, B→C, etc.) Backward Shifting: Ea...