12th Class Mental Ability Logical Venn Diagram Question Bank Question - Syllogism

  • question_answer
    Directions: In each of the questions below are given two statements followed by two conclusion numbered I and II. You have to take the two given statements to be true even if they seems to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements:     Some questions are answers.                         Some doubts are answers. Conclusion:     I Some doubts are answers.                         II Some doubts are not answers.

    A) If only conclusion 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: C

    Solution :

    (c) Statements Some questions are answers. \[\to \] I Some doubts are questions \[\to \] I \[I\text{ }+\text{ }I\text{ }=\text{ }Cannot\text{ }be\text{ }determined\] Conclusion From conversion Some questions are answers. \[\xrightarrow{Conversion}\] Some answers are questions (I) Some doubts are questions. \[\xrightarrow{Conversion}\] Some questions are doubts. (I)


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