Learn the fundamentals of counting in Engineering Mathematics, covering the addition and multiplication principles with simple definitions, tips, and solved examples.
Keywords: Engineering Mathematics, Counting Principle, Addition Principle, Multiplication Principle, Probability and Statistics, Calculus, Linear Algebra

Practice simple questions on counting principles in Engineering Mathematics. Master addition and multiplication principles with easy examples and tricks.

In today’s blog, we explore the fundamental concepts of Permutation and Combination (P & C) — an essential part of Engineering Mathematics after understanding the basics of counting. What is Permutation and Combination? Permutation is the arrangement of items in a particular order. Combination is the selection of items, where the order does not matter. […]

Learn how to solve permutation problems with alike items using clear examples and step-by-step methods.

Derangements are a fascinating concept in combinatorics, a branch of mathematics dealing with counting and arrangements. In this blog, we explore what derangements are, their formulas, and how to apply them through examples and practice questions. Whether you’re a student or a math enthusiast, this guide will help you master derangements! What Are Derangements? A […]

In combinatorics, we often need to calculate the sum and average of all possible N-digit numbers formed by arranging N distinct digits exactly once. For example, with digits 1, 2, 3, we can form 3-digit numbers like 123, 132, 213, 231, 312, and 321. This article explores the formula for the sum, demonstrates manual counting, […]

Circular permutations are an exciting part of combinatorics, where we arrange objects in a circular pattern, like seating people around a table or placing keys on a ring. Unlike linear arrangements, where the starting position matters, circular arrangements treat rotations of the same arrangement as identical. This blog will dive into what circular permutations are, […]