In each of the following questions, find out the wrong number in the series.
17, 23, 31, 41, 53, 69
here we need to find the odd one out in 17, 23, 31, 41, 53, 69
as we can see that
23 - 17 = 6
31 - 23 = 8
41 -31 = 10
53 - 41 = 12
69 - 53 = 16
here we can see that difference between consecutive terms is increasing by 2 every single time but in last case the difference increased by 4 and hence 69 is the odd one out .
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