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    Question

    Three statements are given, followed by three

    conclusions numbered I, II, and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All phones are tablets. No tablet is a calculator. All drives are calculators.        Conclusions: I. Some drives are phones. II. Some calculators are phones. III. No tablet is a drive.
    A Only conclusion III follows Correct Answer Incorrect Answer
    B Only conclusions I and II follow Correct Answer Incorrect Answer
    C Only conclusions I and III follow Correct Answer Incorrect Answer
    D Only conclusion II follows Correct Answer Incorrect Answer

    Solution

    All phones are tablets (A) + No tablet is a calculator (E) → No phone is a calculator (E) + Some  calculators  are drives (I) → Some  drives are not phones (O*). Hence neither conclusion I nor II follow. All drives are calculators (A) + No calculator is a tablet (E) → No drive is a tablet (E) → Conversion → No tablet is a drive (E). Hence conclusion III follow.

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