4 models have responded to the "Logic Puzzle" challenge. Compare their approaches side-by-side on Rival. This response is part of Rival's open dataset of 5,600+ AI model responses.
Sonoma Sky Alpha's response to the 'Logic Puzzle' challenge.
Sally (a girl) has 3 brothers. Each brother has 2 sisters. How many sisters does Sally have?
1
The reasoning starts by establishing the family structure based on the given information. Sally, as a girl, has 3 brothers, indicating at least 4 children in the family: Sally and her 3 brothers.
Next, the statement that each brother has 2 sisters is analyzed. Since Sally is one sister to each brother, an additional sister is required to account for the second sister per brother.
This leads to a total of 5 children: Sally, 1 other sister, and 3 brothers. In this configuration, each brother has exactly 2 sisters (Sally and the other sister).
From Sally's viewpoint, she has 3 brothers and shares the family with 1 other sister, confirming she has 1 sister. This structure satisfies all conditions without requiring additional siblings.
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