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Which number does not belong

 
 
Reply Mon 24 May, 2004 01:03 am
2..5..7..9..12..14..16..20..22..25..29..35

Which number does not belong in above row and why?


whim (I do not know)
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Type: Discussion • Score: 1 • Views: 1,437 • Replies: 7
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Tryagain
 
  1  
Reply Mon 24 May, 2004 01:44 pm
whim (I do not know)

Well, in that case 911 Very Happy
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MyOwnUsername
 
  1  
Reply Mon 24 May, 2004 04:36 pm
hmm...I had some ideas, but all seems to be wrong Smile
let's start with simple ones: 35, because there is no month with 35 days...

more difficult ones...

if we look every third number it should go...2, 9, 16, 23 (and not 25), BUT, other numbers in that case would go 5,7,12,14,20,22,29...so far so good (+2 +5 +2 +6 +2 +7...) but next number in that option should be 31, and not 35...so if only one number is wrong then this scenario does not work Smile
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DrewDad
 
  1  
Reply Wed 26 May, 2004 01:45 pm
35... it's the only number that doesn't have another number after it.
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DrewDad
 
  1  
Reply Wed 26 May, 2004 02:28 pm
Hypothesis 1 (disproved): the digits of the numbers must add up to a prime number. 9, 22 and 35 all fail this test.

Hypothesis 2 (disproved): the digits of the numbers must add up to an odd number. 2, 20, 22, 35 all fail this test.

Hypothesis 3 (unproven): There are two number sequences intermixed:

2, 7, 12, 16, 22, 29 doesnotequal
2+5=7+5=12+5=17+5=22+5=27

5, 9, 14, 20, 25, 35 doesnotequal
5+4=9+5=14+6=20+7=27+8=35

other patterns I'm not seeing?

Hypothesis 4 (not proven): There are three sequences mixed.

2, 9 , 16, 25 (not squares, not adding 7, not adding 7 then 8 then 9)
5, 12, 20, 29 (add 7, then 8, then 9)
7, 14, 22, 35 (not multiples of 7, not adding 7 then 8 then 9)

other patterns I'm not seeing?
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kev
 
  1  
Reply Sun 30 May, 2004 12:12 pm
MerlinsGodson wrote:
35... it's the only number that doesn't have another number after it.


Immaculate logic merlin, or could it be 2 the only number that doesn't have a number before it. Very Happy
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Pondering
 
  1  
Reply Sun 30 May, 2004 07:35 pm
i would say 40
if it belonged, whimsical would have typed it.
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MyOwnUsername
 
  1  
Reply Mon 31 May, 2004 12:47 pm
heheh, good one Pondering Smile
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