JEE Main & Advanced Sample Paper JEE Main Sample Paper-3

  • question_answer
    Two finite sets have m and n elements. The total number of subsets of the first set is 56 more than the total number of subsets of the second set. Then:

    A)  \[m=3,n=6\]                     

    B)  \[m=6,n=3\]

    C)  \[m=5,n=6\]                     

    D)  None of these

    Correct Answer: B

    Solution :

     \[{{2}^{m}}={{2}^{n}}+56\Rightarrow {{2}^{m}}-{{2}^{n}}=64-8={{2}^{6}}-{{2}^{3}}\]


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