SSC CHSL 6 Mar 2018 Shift 1 Paper

Expression : YXYXYXZYX, YXYXYZXYX, YXYXZYXYX, YXYZXYXYX, YXZYXYXYX, _______________.
The pattern followed is that in each term there are 4 combinations of 'YX' and in each term, the position of 'Z' is shifting one place to the left starting from third last position.
Thus, in the missing term, the second term will be 'Z' = YZXYXYXYX