In each of the following questions, identify the wrong number in the series.
By observing the term of series it is deduced that the series must follow the pattern
19 - 9 = 10
40 -19 = 21 = 2 x 10 +1
83 -40 = 43 = 2 x 21 +1
170- 83 = 87 = 2 x 43 + 1
345 - 170 = 175 = 2 x 87 + 1
So option C is correct
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