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    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 Planets are Stars. No Star is a Constellation. Some Constellations are Comets. Conclusions: I. Some Constellations are Stars. II. Some Comets are Planets. III. Some Stars are Planets.
    A Only conclusion I follows Correct Answer Incorrect Answer
    B Only conclusion II follows Correct Answer Incorrect Answer
    C Both conclusions II and III follow Correct Answer Incorrect Answer
    D Only conclusion III follows. Correct Answer Incorrect Answer

    Solution

    No Star is a Constellation (E) → Conversion → No Constellation is a Star (E). Hence conclusion I does not follow. All Planets are Stars (A) + No Star is a Constellation (E) → No Planet is a Constellation (E) + Some Constellations are Comets (I) → Some Comets are not Planets (O*). Hence conclusion II does not follow. All Planets are Stars (A) → Conversion → Some Stars are Planets (I). Hence conclusion III follows.

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