10th Class Mental Ability Blood Relations Question Bank Blood Relations

  • question_answer
    Directions: Read the following information carefully to answer the questions given below it.
    (i) \['\text{L}%\text{M }\!\!'\!\!\text{ }\] Means that M is the brother of L
    (ii) \['\text{L}\times \text{M}'\] Means that L is the mother of M.
    (iii) \[\text{ }\!\!'\!\!\text{ L }\!\!\div\!\!\text{ M }\!\!'\!\!\text{ }\] Means that L is the sister of M.
    (iv) \['\text{L}=\text{M}'\] Means that M is father of L.
    Which of the following means "I is the nephew of Q?"
    (i) \[\text{Q}%\text{J}=\text{I}\]                          
    (ii) \[\text{Q}\div \text{M}\times \text{B}%\text{I}\]
    (iii) \[\text{C}\div \text{I}=\text{B}%\text{Q}\]

    A) Only (iii)              

    B)        Only (i)

    C) Only (ii)               

    D)        Both (ii) and (iii)

    Correct Answer: D

    Solution :

    Nephew \[\to \] son of brother/sister (i) Q % J = I Q % J means Q is the brother of I and J = I means J is father of I. Hence, Q will be the uncle of I. (ii) \[\text{Q}\div \text{M}\times \text{B}%\text{l}\] \[\text{Q}\div \text{M}\to \text{Q}\] Is the sister of M \[\text{M}\times \text{B}\to \text{M}\] Is the mother of B \[\text{B}%\text{I}\to \text{I}\] Is the brother of B \[\therefore \] M is the mother and Q is the maternal aunt of I. Therefore, I will be the nephew of Q. (iii) \[\text{C }\!\!\div\!\!\text{ I}\to \text{B }\!\!%\!\!\text{ Q}\] \[\text{C}\div \text{I}\to \text{C}\] Is the sister of I. \[\text{I}=\text{B}\to \text{B}\] Is the father of I. \[\text{B}%\text{Q}\to \text{Q}\] Is the brother of B. \[\therefore \] Q is the uncle of I. So, I is the nephew of Q. Therefore, both (ii) and (iii) are correct the answers.


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