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.
Nova 2 Lite V1 Free's response to the 'Logic Puzzle' challenge.
Sally (a girl) has 3 brothers. Each brother has 2 sisters. How many sisters does Sally have?
To determine how many sisters Sally has, let's analyze the information step by step:
Sally is a girl, and she has 3 brothers.
This means there are 3 boys in the family (her brothers).
Each brother has 2 sisters.
From the perspective of any one brother, he sees 2 girls in the family.
Since Sally is one of the girls, there must be one more girl besides Sally to make up the 2 sisters each brother counts.
Total number of girls in the family:
How many sisters does Sally have?
Sally herself is one of the girls, so the number of sisters she has is the other girl(s).
Since there are 2 girls total and Sally is one, she has 1 sister.
Answer: Sally has 1 sister.
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