What should come in place of question mark in the following series ?
23 33 46 62 81 103 (?)
Clearly ,
33 - 23 = 10
46 - 23 = 13
62 - 46 = 16
81 - 62 = 19
103 - 81 = 22
Each difference value is increasing by +3 . Hence , the next difference must be 22+3 = 25.
Hence, 103 + 25 = 128
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