Solve relative-truth cat puzzle

Quick Overview

This question evaluates logical deduction, constraint satisfaction, and quantitative manipulation of percentages and averages within a relative truth/lie framework, and is categorized under Statistics & Math and discrete logic puzzles.

Solve relative-truth cat puzzle

Company: SIG (Susquehanna)

Role: Data Scientist

Category: Statistics & Math

Difficulty: medium

Interview Round: Online Assessment

Asta, Bronya, and Clara have different numbers of cats. They say: Bronya to Clara: "You have the most cats." Asta to Bronya: "I have exactly 30% more cats than you." Asta to Clara: "Your number of cats is the average of Bronya’s and mine." Clara to Asta: "You have at least 4 more cats than me." A speaker tells the truth when talking to someone with fewer cats and lies when talking to someone with more cats. Not all statements are true. How many cats does Asta have?

Overview: This question evaluates logical deduction, constraint satisfaction, and quantitative manipulation of percentages and averages within a relative truth/lie framework, and is categorized under Statistics & Math and discrete logic puzzles.

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SIG (Susquehanna)
Aug 11, 2025
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Logic Puzzle: Directed Truth/Lie Rule and Cat Counts

Three people (Asta, Bronya, Clara) each own a different number of cats (positive integers). When someone speaks to another person:

  • They tell the truth if the listener has fewer cats than the speaker.
  • They lie if the listener has more cats than the speaker.

Not all statements are true.

Statements:

  1. Bronya to Clara: "You have the most cats."
  2. Asta to Bronya: "I have exactly 30% more cats than you."
  3. Asta to Clara: "Your number of cats is the average of Bronya’s and mine."
  4. Clara to Asta: "You have at least 4 more cats than me."

Question: How many cats does Asta have?

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