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### Question Asked by a Student from EXXAMM.com Team

** 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**