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Divine NINES

Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.

 

Puzzle ID:#11512
Fun:*** (2.26)
Difficulty:**** (3.11)
Category:Series
Submitted By:griphookph***!!!

 

 

 



What are the next two numbers in this series?

9 10 11 12 13 14 21 ? ?



Answer

100 and 1001.

The series is the number NINE shown in decreasing Reference Numbers(BASE)i.e. from Base 10 to Base 2.
NINE is 9 in base 10, 10 in base 9, 11 in base 8...21 in base 4, 100 in base 3 and 1001 in base 2.

Hint: BASEd suggests the use of reference numbers and Divine NINES suggests the number nine.

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