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Syllogisms and Deductions Flashcards

7 cards from real CCAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. All managers are employees. Some employees are part-time workers. Which conclusion must be true?

    Answer: Some employees are managers

    Since all managers are employees, it follows that some employees (namely the managers) are managers.

  2. No reptiles are warm-blooded. All snakes are reptiles. Which of the following must be true?

    Answer: No snakes are warm-blooded

    Since no reptiles are warm-blooded and all snakes are reptiles, no snakes can be warm-blooded.

  3. All A are B. No B are C. Therefore:

    Answer: No A are C

    Since all A fall within B, and no B are C, no A can be C.

  4. Some doctors are researchers. All researchers publish papers. Which conclusion is valid?

    Answer: Some doctors publish papers

    The doctors who are also researchers must publish papers, so some doctors publish papers.

  5. Every student who passed the exam studied hard. Maria did not study hard. What can you conclude?

    Answer: Maria did not pass the exam

    By contrapositive, if someone did not study hard, they did not pass the exam.

  6. All red fruits are sweet. Some apples are red fruits. Therefore:

    Answer: Some apples are sweet

    The apples that are red fruits must be sweet, so some apples are sweet.

  7. No fish can survive on land. Salmon is a fish. A salmon was found on land. What must be true?

    Answer: The salmon cannot survive on land

    The premise states no fish can survive on land; being found on land doesn't change this — the salmon cannot survive there.