31.
Seven people A, B, C, D, E, F and G are sitting around a circular table, facing the centre (but not necessarily in the same order). B is sitting third to the right of D. G is sitting second to the left of A. E is sitting to the immediate right of G. Only three people are sitting between E and C when counted from the left of E. C is not an immediate neighbour of A. The position of how many persons will remain unchanged except A if all the persons are arranged in the English alphabetical order in anti-clockwise direction, starting from A and keeping the position of A unchanged?