RRB Group D 2-Nov-2014 Shift 2 Solved Paper

Here the number at the even positions is the same, i.e., 16,
whereas the numbers at the odd positions are increasing by 1.
5 + 1 = 6 6 + 1 = 7 But, 7+ 1 = 8 (not 9)
Therefore, 9 is the wrong number in the given sequence.