12th Class Mathematics Relations and Functions Question Bank Case Based (MCQs) - Relations and Functions

  • question_answer
    Mr. 'X' and his wife 'W' both exercised their voting right in general election-2019. Which of the following is true ?

    A) both (X, W) and \[\left( W,\,X \right)\in R\]

    B) \[\left( X,\,W \right)\in R\] but \[\left( W,\,X \right)\notin R\]

    C) both (X, W) and \[\left( W,\,X \right)\notin R\]

    D) \[\left( W,\,X \right)\in R\] but \[\left( X,\,W \right)\,\notin R\]

    Correct Answer: A

    Solution :

    Since both X and W exercised their voting right \[\therefore \,\,\left( X,\,\,W \right)\in R\] and \[\left( W,\,\,X \right)\in \,R\]


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