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Q 1669601515.     Let `A` and `B ` be finite non-empty sets with the
number of elements in `A= m` and number of
elements in `B = n` . Let `m > n`. If for some integer
`k ge 1`, the number of non-empty subsets of
`A= 2^k +` the number of non-empty subsets of `B`,
then which one of the following is correct?

CDS 2015 Paper-1
A

`m=n+2`

B

`m=n+1`

C

`m = n + p`, for some odd prime number `p`

D

`m = n + t`, for some composite number `t`

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