What will come in place of the question mark (?) in the following number series ?
19 - 12 = 7
35 - 19 = 16
59 - 35 = 24
90 - 59 = 31
Let us look at the second order difference.
16 - 7 = 9
24 - 16 = 8
31 - 24 = 7
The next difference will be 31 + 6 = 37
90 + 37 = 127
Option B is the right answer.
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