The number of subsets in set A is 192 more than the number of subsets in set B. How many elements are there in set A?
I don't know much about sets and subsets! But it looks to me, just by simple inspection, that set A has 8 elements and set B has 6 elements, only in this sense: Set A =2^8 =256 subsets and Set B =2^6 = 64 subsets.
So: 256 - 64 =192 more subsets in Set A than Set B. Somebody should correct me if I'm wrong.