11th Class Mental Ability Syllogisms Question Bank Question - Syllogism

  • question_answer
    Direction: Each of the following questions contains two statements followed by two conclusions numbered I and II. You have to consider the two statements to be true, even if they seen to be at variance at the commonly known facts. You have to decide which of the given conclusions definitely follows from the given statements.
    You are to give your answer as: (a) if only I follows ; (b) if only conclusion II follows ; (c) if either I or II follows; (d) if neither I nor II follows and (e) if both I and II follow.
    Statement:  
    All students are girls.
    No girl is dull.
    Conclusions:
    I. There are no boys in the class.
    II. No student is dull.

    A) If only I follows

    B) If only conclusion II follows

    C) If either I or II follows

    D) If neither I nor II follows

    E) If both I and II follow

    Correct Answer: E

    Solution :

    Explanation Option (e) is correct. A + E = E. The conclusion is No student is dull. \[I{{I}^{nd}}\]follows. Since All students are girls, which means No boys are students. Hence I also follows.


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