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  3. 10th Class
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  5. Logical Reasoning

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 have beaks. Some birds have wings. Conclusions:            
    I. Every bird has either beak or wing.
    II. Some birds have neither wing nor beak.
    III. Some birds have beaks as well as wings.
    IV. No bird has beak as well as wing.

    A) Only I and II follow        

    B) Only II and III follow

    C) Only II and IV follow      

    D) Either III or IV follows

    E) All of follow

    Correct Answer: D

    Solution :

    Explanation Option [d] is correct. Since both the premises are particular, no definite conclusion follows. However, III and IV form a complementary pair. Thus, either III or IV follows.


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