Discover the Missing Number in the Series: 10, 9, 60, 90, 70, 66, ?

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Discussion Overview

The discussion revolves around identifying a missing number in a numerical series: 10, 9, 60, 90, 70, 66, ?. Participants explore the nature of the sequence and whether there is a unique continuation or multiple valid interpretations.

Discussion Character

  • Debate/contested
  • Exploratory

Main Points Raised

  • Some participants question the assumption that there is a unique way to continue the series.
  • Others suggest that while there may not be a unique solution, they are looking for the simplest or any possible continuation.
  • A participant humorously proposes that the number 7 could fit as a continuation, noting the date as April 1.
  • Another participant introduces a different sequence (14, 23, 28, 34, 42, ?) as having a definitive answer, hinting at a local context for NYC residents.
  • One participant presents a long list of numbers, suggesting that the pattern should be obvious, though it appears to be nonsensical or humorous.
  • A later reply questions whether the original series is an elaborate April Fools' joke designed to mislead participants into searching for a pattern.
  • Another participant provides a link to a real series, indicating that the numbers correspond to words in English, which may not be of mathematical interest to everyone.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the nature of the series or its continuation. Multiple competing views and interpretations remain present throughout the discussion.

Contextual Notes

The discussion includes humor and speculative interpretations, with some participants suggesting the series may not have a serious mathematical basis.

it.anoopk
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10, 9, 60, 90, 70, 66, ?
 
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What reason do you have to think that there is a unique way to continue this?
 
May not be a unique way, but I think he just wants the simplest or any way. Either way it stumps me.
 
Well, if he want any way, 7 will do fine!:smile:

Hmm, I do notice that today is April 1.
 
Try the sequence 14,23,28,34,42,? At least it has an answer (particularly for NYC residents).
 
um...
..., 96, 10000000000, 10000000000000
 
This is an old problem. Here's the answer

10, 9, 60, 90, 70, 66, 314, Kermit, 7, 2, 2, 19, 43, Wyoming, 14343, 22, 43, 44, 1.654342, the Larch, 22, 23, 24, 0, 5, ...

The pattern should now be obvious.
 
Is this a big april fools joke to make us try our hardest to find a pattern and waste our time?
 
It's a real series: http://www.research.att.com/~njas/sequences/A052196

Code: 
ten
nine
sixty
ninety
seventy
sixtysix
ninetysix
tenbillion
tentrillion
 
Last edited by a moderator:
  • #10
Good spot! Though not of much interest to me mathematically, this series..
 

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