37, 10, 82
Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.
Can you discover the missing number in this series?
37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15
Answer
The missing number is 6.
The number in the middle of each triple is the same as the digits of either end's number when added together. 3+7=10=8+2 and so on.
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Comments
onlyeeyore  
Jun 03, 2005
| Fun, fun! |
dbs241   
Jun 03, 2005
| Whew! Nice to finally get one! LOL  |
Yoyobug02  
Jun 03, 2005
| very good it was a lot of fun keep up the work  |
darthforman 
Jun 06, 2005
|  |
monkies_r2_kool  
Jul 07, 2005
| that was totally kool  |
jabdr   
Feb 07, 2008
| Great teaser I really gave up too soon. I'd love another 'series' teaser to try again.  |
doehead   
Feb 07, 2008
| Excellent .Finally got it after 5 minutes of driving my brain crazy.Keep up the good work.  |
avonma   
Feb 07, 2008
| Aw, I should have spent more time trying to figure it out. It was a great teaser, though.  |
smartymarty  
Feb 07, 2008
| Great teaser. Thanks  |
karma48 
Feb 07, 2008
| That's what I'm talkin' about. Great teaser. Let's have more of these please! (9) |
craniac   
Feb 07, 2008
| This one made me feel smart!  |
locutus13ds  
Feb 07, 2008
| I blew a few brain cells, but no dice!! Good one..  |
dogg6pound9   
Feb 07, 2008
| great job!!!... these series teasers always get the brain cells active... took me a few minutes, but it eventually came to me  |
2ndhandrose  
Feb 07, 2008
| Excellent! I didn't get it tho.
Maybe next time.
Thanks  |
plrm01   
Feb 07, 2008
| another way to get 6 is if you subtract the middle number from both the first and last numbers you are left with a multiple of 9. So, 37-10=27 27=9x3 & 82-10=72 72=9x8 etc. |
SweetPotato   
Feb 07, 2008
| Good one, thanks. Aw, I thought there were 4 separate problems ... I never got to the one with the question mark before I gave up. Next time i'll look at the whole problem first.
plrm01 ... so when you get to the multiple of 9, how do you get 6 from that? I'm missing something. |
bradon182001   
Feb 07, 2008
| Boy do I feel dumb. Apparently not my strong suit. Good teaser even though I didn't get it.  |
xlrfreak   
Feb 07, 2008
| COOL nice trick  |
angelawrence94  
Feb 07, 2008
| cool, but hard |
mondayschild59   
Feb 07, 2008
| Great teaser, even if I missed it. Thanks for posting.
Monday~  |
auntiesis    
Feb 07, 2008
| Good one, Fishmed. I didn't get it, but I enjoy this kind of teaser. Thanks  |
UptheHill  
Feb 07, 2008
| Two words, NI CE!! |
thecatladycac  
Feb 07, 2008
| I did something similar to plrm01 - multiply the first digit in the first number by nine and then subtract that answer from the number (37 - 3x9=27; 37-27=10. So 42 - 4x9=36; 42-36=6)
Do the same with the 2nd number, only it it on instead of subtracting it! |
SweetPotato   
Feb 08, 2008
| thecatladycac and plrm01, you guys are good .
plrm01, I finally figured out how your method works ... clever!  |
plrm01   
Feb 08, 2008
| sweetpotato, I'm glad that you figured it out. Sorry it took me so long to respond back to you. |
Holo   
Feb 08, 2008
| Cool  |
elentir   
Feb 07, 2011
| I also got it via plrm01's method. |
Zinovia   
Feb 07, 2011
| A little too easy, but still fun. Thanks for the teaser! |
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