example of N={1,2,3} with A={1,2} and B={2,3} we see that a permutation can act on N=A∪B in six ways. Of these, one-third will map 2∈A∩B to the minimum position. Therefore the total number of permutations such that min(ρ(A))=min(ρ(B)) is six times one-third according to answer given answer comes out to be 2 what does it represent does it mean that out of 6 permutation of N only 2 permutation satisfy for condition