Self-Study Edition
Combinatorics
An Advanced Practice Examination in Counting Methods
I · Rule of Sum
II · Rule of Product
III · Factorial
IV · Permutation
V · Combination
Instructions
- This test contains 100 multiple-choice questions, arranged from foundational to challenging.
- Each question has exactly one correct answer among four choices.
- A short hint and key concept appear beneath every question — read it before answering.
- Select an answer to instantly see whether it is correct, along with a brief explanation.
- No calculator is required. Work through the problems in order for the best learning effect.
- Use the Print / Save as PDF button for a clean paper copy; the answer key appears on the last page.
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Answer Key
For self-checking after printing · one letter per question