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    Question

    In the question below some statements are given followed by two conclusions I , II and I II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusion definitely follows from the given statements, disregarding commonly known facts.

    Statements: Every Flat is Apartment. No

    Floor is Apartment. Few Floor are Building. Conclusions: I. All Apartment can be Building. II. Every Building can be Apartment. III. No Flat is Floor.
    A Only conclusion I follows. Correct Answer Incorrect Answer
    B Only conclusion III follows. Correct Answer Incorrect Answer
    C Only conclusions I and II follow. Correct Answer Incorrect Answer
    D Only conclusions I and III follow. Correct Answer Incorrect Answer
    E All the conclusions follow. Correct Answer Incorrect Answer

    Solution

    No Floor is Apartment (E) → Conversion → No Apartment is Floor (E) + Few Floor are Building (I) → Some Building are not Apartment (O*) → Probable conclusion → All Apartment can be Building (A). Hence conclusion I follows but conclusion II does not follow.

    Every Flat is Apartment (A) + [No Floor is Apartment (E) → Conversion] → No Apartment is Floor (E) → No Flat is Floor (E). Hence conclusion III follows.

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