VIDEOS
- Listing and Counting: Learn one of the first strategies you should consider when you encounter a counting question.
- Fundamental Counting Principle (FCP) : Learn how to apply the Fundamental Counting Principle.
- GMAT counting strategies - part I: Learn some basic strategies to consider whenever you encounter a counting question.
- Factorial notation: Learn some notation required for many counting questions.
- Handling restrictions: Learn two strategies for handling restrictions in counting questions.
- MISSISSIPPI rule: Learn how to arrange objects when some objects are identical.
- Introduction to combinations: Learn how combinations work.
- When to use combinations: Learn how to determine whether a question is a combination question.
- Calculating combinations in your head: Learn a quick way to calculate combinations in your head.
- GMAT counting strategies - part II: Review all of the strategies that can be applied to counting questions.
ARTICLES
Combinations and Non-Combinations - Part I: https://www.gmatprepnow.com/articles/co ... %93-part-i
Combinations and Non-Combinations - Part II: https://www.gmatprepnow.com/articles/co ... 93-part-ii
Combinations and Non-Combinations - Part III: https://www.gmatprepnow.com/articles/do ... 3-part-iii
GMAT Math vs. School Math - Part II - Counting: https://www.gmatprepnow.com/articles/gm ... i-counting
Counting (permutations & combinations)
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