Minimum-count arrangement (ducks in line): Satisfy three positional descriptions simultaneously. Requirement: “Two ducks in front of a duck”, “two ducks behind a duck”, and “a duck between two ducks”. Find the smallest number of ducks that can satisfy all three statements at once. Choose the correct minimum.
Verbal Reasoning
Arithmetic Reasoning
Difficulty: Easy
Choose an option
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A3
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B5
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C7
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D9
Answer
Correct Answer: 3
Explanation
Visualize 3 ducks in a rowD₁ — D₂ — D₃
Check conditions
- Two in front of a duck: for D₃, ducks D₁ and D₂ are in front.
- Two behind a duck: for D₁, ducks D₂ and D₃ are behind.
- A duck between two ducks: D₂ is between D₁ and D₃.
ConclusionAll three statements hold with just 3 ducks; fewer is impossible.
Final Answer3