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Question
What number should come next?
75 65 85 55 45 85 35
Options:
A .  25 15
B .  25 85
C .  35 25
D .  85 35
E .  25 75
Answer: Option B


This is a simple subtraction series in which a
random number, 85, is interpolated as every
third number. In the subtraction series, 10 is
subtracted from each number to arrive at the
next.



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