Logical Venn Diagram


  1. Indicate which figure will best represent the relationship amongst the three:
    Legumes Seeds, Peas, Kidney Beans









  1. View Hint View Answer Discuss in Forum

    As per the given above question , we can say that
    Pea is different from kidney bean. But both are Leguminous seeds.

    Correct Option: B

    As per the given above question , we can say that
    Pea is different from kidney bean. But both are Leguminous seeds.
    From above it is clear that Peas and Kidney Beans belong to Legumes Seeds .Hence , required answer is option ( B ) .



  1. In the given figure, circles represent students studying 3 different subjects. How many students study all the 3 subjects?











  1. View Hint View Answer Discuss in Forum

    From above given diagram , we can say that
    The number ‘3’ is common to all the three circles.

    Correct Option: B

    From above given diagram , we can say that
    The number ‘3’ is common to all the three circles.
    Hence , 3 students study all the three subjects .



  1. The diagram represents Teachers, Singers and Players. Study the diagram and find out how many teachers are also singers.











  1. View Hint View Answer Discuss in Forum

    From the given diagram , we can see that
    Number of teachers who are also singers = 9


    Correct Option: C

    From the given diagram , we can see that
    Number of teachers who are also singers = 9
    Hence , 9 teachers are also singers.



  1. In a group of persons, 11 persons speak Kannada, 20 persons speak Tamil and 11 persons speak Telugu. In that group, if two persons speak 2 languages and 1 person speak all the languages, then how many persons are there in the group?











  1. View Hint View Answer Discuss in Forum

    According to question ,
    Let us assume Number of Kannada = K , Number of Tamil = T and Number of Telugu = Te
    Here , n(K) = 11; n(T) = 20; n(Te) = 11
    n(K ∩ T ∩ Te) = 1
    n(K ∩ T) = n(T ∩ Te) = n(Te ∩ K) = 2
    n(K U T U Te) = n(T) + n(K) + n(Te) - n(K ∩ T) - n(T ∩ Te) - n(Te ∩ K) + n(K ∩ T ∩ Te)

    Correct Option: C

    According to question ,
    Let us assume Number of Kannada = K , Number of Tamil = T and Number of Telugu = Te
    Here , n(K) = 11; n(T) = 20; n(Te) = 11
    n(K ∩ T ∩ Te) = 1
    n(K ∩ T) = n(T ∩ Te) = n(Te ∩ K) = 2
    n(K U T U Te) = n(T) + n(K) + n(Te) - n(K ∩ T) - n(T ∩ Te) - n(Te ∩ K) + n(K ∩ T ∩ Te)
    n(K U T U Te) = 20 + 11 + 11 - 2 - 2 - 2 + 1 = 37



  1. Identify the diagram that best represents the relationship among classes given below :
    Food, Curd, Spoons









  1. View Hint View Answer Discuss in Forum

    According to question , we can say that
    Food and Curd belong to same class , but Spoons belong to other class .

    Correct Option: D

    According to question , we can say that
    Food and Curd belong to same class , but Spoons belong to other class .
    From above it is clear that required answer will be option D .So , option D is correct .