2. Solved Papers
  3. J & K CET Engineering

J & K CET Engineering J and K - CET Engineering Solved Paper-2008

  • question_answer
    If n[A] denotes the number of elements in the Set A and if \[n(A)=4,\,n(B)=5,\] and \[(A\cap B)=3,\]then \[n[(A\times B)\cap (B\times A)]\]  is equal to

    A)  \[8\]             

    B)  \[9\]

    C)  \[10\]            

    D)  \[11\]

    Correct Answer: B

    Solution :

    Given,  \[n(A)=4,\,n(B)=5\] and \[n(A\cap B0=3,\] \[\therefore \]   \[n[(A\times B)\cap (B\times A)]={{3}^{2}}=9\]


You need to login to perform this action.
You will be redirected in 3 sec spinner