reasoning · 2026-09-16

Three identical pumps together move 3 liters of water in 3 minutes. Each works continuously at the same constant rate. How many pumps are needed to move 100 liters in 100 minutes?

Answer: d

The three pumps together move one liter per minute, so together they move 100 liters in 100 minutes.

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