Which of the following pair of persons are immediate neighbors?
We have, G sits second to the left of Z. Two persons are sitting between Z and X. B and X are sitting adjacent to each other. From the above condition, there are three possibilities. Again we have, The number of persons sitting between Z and B is the same as between Z and A. From the above condition, case1 gets eliminated. Again we have, Q sits exactly in the middle of W and B. B sits fifth to the left of A. W does not sit third to the right of X. Not more than one person sits between Q and B. From the above condition, case2 gets eliminated. Case 1a shows the final arrangement