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NTS - National Testing Service Critical Thinking and Logical Reasoning Flashcards

6 cards from real NTS 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. If all roses are flowers and all flowers need water, what can be concluded?

    Answer: Roses need water.

    By syllogistic reasoning, since roses are flowers and flowers need water, roses must also need water.

  2. Which conclusion follows from: "No mammals are cold-blooded. All snakes are cold-blooded."?

    Answer: No snakes are mammals.

    Since mammals are never cold-blooded and snakes always are, snakes and mammals share no members.

  3. Identify the logical fallacy: "You can't trust his opinion on taxes because he's wealthy."

    Answer: Ad hominem

    Attacking the person's wealth instead of evaluating their argument is an ad hominem fallacy.

  4. In the sequence 2, 6, 18, 54, ___, what comes next?

    Answer: 162

    Each term is multiplied by 3: 2×3=6, 6×3=18, 18×3=54, 54×3=162.

  5. Which number is the odd one out: 4, 9, 16, 25, 35, 49?

    Answer: 35

    All others (4, 9, 16, 25, 49) are perfect squares, but 35 is not (it falls between 5²=25 and 6²=36).

  6. Which of the following is an example of deductive reasoning?

    Answer: All mammals breathe air; whales are mammals; therefore whales breathe air.

    Deductive reasoning draws a logically certain conclusion from general premises applied to a specific case.

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