9th Class Mental Ability Syllogisms Question Bank Syllogism

  • question_answer
    Directions: In each questions below are given three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read both of the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.
    Statements: I. All glasses are rivers.
    II. All rivers are bottles.
    III. All bottles are plates
    Conclusions: I. Some plates are rivers.
    II. Some bottles are glasses.

    A) I follows

    B) II follows

    C) Either I or II follows

    D) Neither I nor II follows

    E) Both I and II follow

    Correct Answer: E

    Solution :

    Explanation Option [e] is correct. Let us see: All glasses are. (A type) All are bottles. (A type) A + A = A type of conclusion. ?All glasses are bottles?. Conclusion II is converse of it. All rivers are (bottles). (A type) All (bottles) are plates. (A type) A + A = A type of conclusion. ?All rivers are plates?. Conclusion I is converse of it. Rest of the options is incorrect because of the correctness of option [e].


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