AMO 2027 Grades 9-11 SET 5 - Self-study Question 11

Betsy collects sports posters. Exactly one of these statements is false:
- Betsy has at least 122 sports posters.
- Betsy has at least 131 sports posters.
- Betsy has at least 135 sports posters.
- Betsy has at least 139 sports posters.

What is the greatest possible number of posters in her collection?

Choose one option.