Question

    Read the given statements and conclusions carefully.

    Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All nails are hand. All hand are fingers. Some arms are fingers. Conclusions: I. Some fingers are nails. II. Some arms are hand. III. All hand are nails.
    A Only conclusion I 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
    E None of These Correct Answer Incorrect Answer

    Solution

    All nails are hand (A) + All hand are fingers (A) → All nails are fingers (A) → Conversion → Some fingers are nails. (I). Hence conclusion I follows. Some arms are fingers (I) + [All hand are fingers (A) → Conversion] → Some fingers are hand (I) → No conclusion. Hence conclusion II does not follow. All nails are hand (A) → Conversion → Some hand are nails. (I). Hence conclusion III does not follow.

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