Number System for SSC, Banking, CGL, CHSL, Railway, OSSC, OSSSC – Complete Basics to Advance Pre + Mains Preparation

June 5, 2025 • Mathematics

Swaraj Barik

teacher

This note covers all types of number systems important for exams like SSC, Banking, Railway, OSSC, OSSSC: Included Types: Natural numbers, Whole numbers, Rational, Irrational, Real, and Complex numbers Positional & Non-Positional Systems Decimal, Binary, Octal, and Hexadecimal systems What You’ll Learn: Easy tricks to convert numbers between different bases Direct methods for base conversion How digit position and base determine number value How to convert decimal to binary, octal, hex and vice versa Grouping shortcuts to convert between binary, octal, and hexadecimal fast