Question

    Statements: No pen is box. No box is

    pencil. No pencil is eraser. Conclusions: I. No pen is pencil. II. No eraser is pencil. III. Some pens are not boxes. In each of the questions below are given three statements followed by three conclusions numbered I, II and III. 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 given conclusions logically follows from the given statements disregarding commonly known facts .
    A None follows Correct Answer Incorrect Answer
    B Only I and II follow Correct Answer Incorrect Answer
    C Only II and III follow Correct Answer Incorrect Answer
    D Only I and III follow Correct Answer Incorrect Answer
    E All follow Correct Answer Incorrect Answer

    Solution

    No pen is box(E) + No box is pencil(E) No conclusion. Hence conclusion I does not follow No pencil is eraser(E) Conversion No eraser is pencil (I). Hence conclusion II follows. No box is pencil(E) Conversion Some pens are not boxes(O). Hence conclusion III follows.

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