reasoning · 2026-10-10
In a class of 20 students, 15 play soccer and 10 play basketball. Every student plays at least one of these sports. How many students play both?
Answer: d
Adding the soccer and basketball players yields 15 + 10 = 25. Since there are only 20 students in total, the extra 5 must be the students who were counted twice because they play both.
Model answers
- gpt-oss-20b (openai/gpt-oss-20b): d
- qwen-3-8-27b (qwen/qwen3.8-27b): d
- nemotron-3-super (nvidia/nemotron-3-super-120b-a12b:free): d
- gemini-3-8-flash (gemini-3.8-flash-low): d
- gemini-3-1-pro (gemini-3.1-pro-high): d
- claude-opus-4-6 (claude-opus-4-6-thinking): d