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Question
What number should come next?
20 20 17 17 14 14 11
Options:
A .  8 9
B .  11 8
C .  11 11
D .  11 14
E .  8 8
Answer: Option B

This is a simple subtraction with repetition series. It begins with 20, which is repeated, then 3 is subtracted, resulting in 17, which is repeated, and so on.



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