Permutation, Combination, and Probability for CGPSC Exams

Quantitative aptitude can make or break your score in competitive civil service exams like the CGPSC. Understanding the core principles of permutations, combinations, and probability is key to unlocking high marks in the aptitude paper. This text-based course guides you from the absolute basics of counting theory to solving complex probability distributions. You will learn to recognize problem patterns, apply formulas systematically, and avoid common traps found in exam questions. What you'll learn: Understand the fundamental principles of counting, including addition and multiplication rules; Apply permutation and combination formulas to solve arrangement and selection problems; Calculate probability for independent, dependent, and mutually exclusive events; Analyze exam-style word problems systematically to identify the correct mathematical approach; Master modern shortcuts and logical reasoning techniques to solve questions quickly under exam-day time constraints; Practice with structured, written step-by-step solutions designed for civil service exam patterns. We begin with foundational definitions of factorials and basic counting before moving into advanced selection scenarios and probability laws. Each concept is reinforced with written practice problems and detailed breakdowns of classic exam questions. This course is designed for CGPSC and state services aspirants who want to build a solid foundation in quantitative aptitude from scratch. No advanced mathematical background is required. Start reading today to turn these challenging exam topics into your competitive advantage.