### Brain Teasers

# 37, 10, 82

Can you discover the missing number in this series?

37, 10, 82

29, 11, 47

96, 15, 87

42, ?, 15

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

Fun, fun!

Whew! Nice to finally get one! LOL

very good it was a lot of fun keep up the work

that was totally kool

Great teaser I really gave up too soon. I'd love another 'series' teaser to try again.

Excellent .Finally got it after 5 minutes of driving my brain crazy.Keep up the good work.

Aw, I should have spent more time trying to figure it out. It was a great teaser, though.

Great teaser. Thanks

That's what I'm talkin' about. Great teaser. Let's have more of these please! (9)

This one made me feel smart!

I blew a few brain cells, but no dice!! Good one..

great job!!!... these series teasers always get the brain cells active... took me a few minutes, but it eventually came to me

Excellent! I didn't get it tho.

Maybe next time.

Thanks

Maybe next time.

Thanks

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.

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.

plrm01 ... so when you get to the multiple of 9, how do you get 6 from that? I'm missing something.

Boy do I feel dumb. Apparently not my strong suit. Good teaser even though I didn't get it.

COOL nice trick

cool, but hard

Great teaser, even if I missed it. Thanks for posting.

Monday~

Monday~

Good one, Fishmed. I didn't get it, but I enjoy this kind of teaser. Thanks

Two words, NI CE!!

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!

Do the same with the 2nd number, only it it on instead of subtracting it!

thecatladycac and plrm01, you guys are good .

plrm01, I finally figured out how your method works ... clever!

plrm01, I finally figured out how your method works ... clever!

sweetpotato, I'm glad that you figured it out. Sorry it took me so long to respond back to you.

Cool

I also got it via plrm01's method.

A little too easy, but still fun. Thanks for the teaser!

That was really good! Until I saw the answer I had no idea what we were suposed to do. Next time I will

have a better clue. Good one!

have a better clue. Good one!

Got it from the first (1'st) # in each series; didn't see the connection to the last number in each series though.

Got it after a good brain workout.

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