IKMC 2024 - Grades 5-6 - Self-study Question 14

Question 14

Simon has four cups with matching saucers. He puts a randomly chosen cup on each saucer. Which statement is definitely true?

1. Certainly no cup matches.
2. Certainly exactly one cup matches.
3. Exactly two matches are impossible.
4. Exactly three matches are impossible.
5. Four matches are impossible.