Question

    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.

    Statements: No herb is a tree.

    Some trees are shrubs.

    No shrub is petal.

    Conclusions: I. No petal is a shrub.

    II. Some shrubs are not herbs.

    III. No tree is a petal.

    A Only I follows Correct Answer Incorrect Answer
    B Only I and II follow Correct Answer Incorrect Answer
    C Only III follows Correct Answer Incorrect Answer
    D None follows Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    No shrub is petal(E) ⇒ Conversion ⇒ No petal is a shrub(E). Hence, conclusion I follows. No herb is a tree(E) + Some trees are shrubs(I) ⇒ Some shrubs are not herbs(O*). Hence, conclusion II follows. Some trees are shrubs(I) + No shrub is petal(E) ⇒ Some trees are not petals(O). Hence, conclusion III does not follow

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