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Question
What number should come next?
2 3 4 5 6 4 8
Options:
A .  9 10
B .  4 8
C .  10 4
D .  9 4
E .  8 9
Answer: Option D


This is an alternating addition series with a
random number, 4, interpolated as every
third number. In the main series, 1 is added,
then 2 is added, then 1, then 2, and so on.



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