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.
Glm 4.5 Air's response to the 'Logic Puzzle' challenge.
Sally (a girl) has 3 brothers. Each brother has 2 sisters. How many sisters does Sally have?
Sally has 3 brothers, meaning there are 3 boys in the family besides Sally. Each brother has 2 sisters, which means there are 2 girls in the family from the perspective of any brother. Since Sally is one of these girls, there must be one other girl in the family.
Therefore, Sally has one sister.
This can be verified by considering the family composition:
From Sally's perspective:
From the perspective of any brother:
The conditions are satisfied: Sally has 3 brothers, and each brother has 2 sisters. If there were only one girl (Sally), each brother would have only one sister, which contradicts the given information. If there were three girls, each brother would have three sisters, which also contradicts the given information. Thus, there must be exactly two girls in the family.
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