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    Question

    Statements: Some files are folders. No

    folders are plastics. All plastics are bags. Conclusions: I. Some plastics are not files. II. No folder is a bag. III. Some folders are not bags. In each question below are given three statements followed by three conclusions numbered I, II and III. You have to take the two given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
    A Either I or III and II follows Correct Answer Incorrect Answer
    B Either II or III follows Correct Answer Incorrect Answer
    C Either I and II follows Correct Answer Incorrect Answer
    D None follows Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Some files are folders (I) + No folders are plastics (E) ⇒ Some files are not plastics(O). Hence, conclusion I will not follow. No folders are plastics (E) + All plastics are bags (A) ⇒ Some bags are not folders(O*). Hence, conclusion II and III will not follow but will form a complementary pair. Alternate Method: Minimum possibility:

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