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  3. 10th Class
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10th Class Mental Ability Logical Reasoning Question Bank Logic

  • question_answer
    Direction: In each of the following questions two statements are given followed by two three or four conclusions numbered I, II, III, and IV. You have to take the given statements to be true even if they seem to be at variance from the commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.
    Statements: Some birds are aquatic animals. All fish are aquatic animals. Conclusions:            
    I. Some birds are fish.
    II. Some fish are birds.

    A) Only conclusion I follows

    B) Only conclusion II follows

    C) Either I or II follows        

    D) Neither I nor II follows

    E) Both I and II follows

    Correct Answer: D

    Solution :

    Explanation Option [d] is correct. The first premise is an I type proposition. So, the middle term ?aquatic animals? forming the predicate is not distributed. The second premise is an A type proposition. So, the middle term ?aquatic animals? forming the predicate is not distributed. Since the middle term is not distributed even once in the premises, no definite conclusion follows.


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