Permutation & Combination - When to Add vs. When to Multiply

If you always struggle to understand when to add cases and when to multiply cases in a Permutation Combination questions, then this video is a must-watch for you. We have taken a simple question to help you understand the right approach. The idea is fairly simple, you need to understand the question and whenever you're confused simply write down the various cases possible in English using "AND" and "OR", then replace "AND" with multiplication and "OR" with addition. In this video, we have explained the same in detail. To check out more helpful videos on Quant/Maths, register for free on https://learn.gmatwhiz.com/?page=signup