Series • Number, letter, and figure series
Series: Full-Length Notes by a Senior Professor (Number, Letter, and Figure Series—With Examples, Explanations, and 100 Practice Questions) Introduction to Series A series is an ordered sequence of numbers, letters, or figures that follow a specific pattern or rule. Series questions are a staple in reasoning, aptitude, and competitive exams because they test your ability to recognize patterns, logical progression, and analytical thinking. Types of Series 1. Number Series Number series involve a sequence of numbers following a particular mathematical pattern. Your task is to identify the pattern and find the missing term(s). Common Patterns in Number Series Arithmetic Series: Each term is obtained by adding or subtracting a fixed number (common difference) to the previous term. Example: 4, 9, 14, 19, 24, ... (Add 5 each time) 4 6 7 Geometric Series: Each term is obtained by multiplying or dividing the previous term by a fixed number (common ratio). Ex...