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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 Planet are Star No Star is Comet A few Meteor are Comet Conclusions: I. No Comet is Planet II. At least some Comet are Meteor III. Some Meteor are not Star
    A Only conclusions I and III follow Correct Answer Incorrect Answer
    B Only conclusions I and II follow Correct Answer Incorrect Answer
    C Only conclusions II and III follow Correct Answer Incorrect Answer
    D All conclusions I, II, and III follow Correct Answer Incorrect Answer

    Solution

    All Planet are Star (A) + No Star is Comet (I) → No Planet is Comet (E) → Conversion → No Comet is Planet (E). Hence conclusion I follows. A few Meteor are Comet (I) → Conversion → Some Comet are Meteor (I). Hence conclusion II follows. A few Meteor are Comet (I) + [No Star is Comet (E) → Conversion → No Comet is Star (E) → Some Meteor are not Star. Hence conclusion III follows.

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