Instructions
Each of the following questions has a series of numbers which follow a definite pattern except for one number. Identify the incorrect term of the series.
Solution
14 = 13*1+1
26 = 14*2-2
81 = 26*3+3
320 = 81*4-4
320*5+5 = 1605
27 is the incorrect term in the given series and hence, option C is the right answer.
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