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Author Topic: A little Math problem  (Read 4654 times)

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Offline Outcrier

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A little Math problem
« on: April 25, 2016, 06:32:09 AM »
1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
8 + 11 = ?
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Offline JustJen

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Re: A little Math problem
« Reply #1 on: April 25, 2016, 06:36:20 AM »
... and it is 40.
  ~ a.k.a. VFS in a past life :vfs:

Offline Kotowboy

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Re: A little Math problem
« Reply #2 on: April 25, 2016, 06:37:40 AM »
what

Online Chino

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Re: A little Math problem
« Reply #3 on: April 25, 2016, 06:38:33 AM »
92

Offline DragonAttack

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Re: A little Math problem
« Reply #4 on: April 25, 2016, 06:39:19 AM »
19 ;)

[for the format, I'm going with 96]
...going along with Dragon Attack's Queen thread has been like taking a free class in Queen knowledge. Where else are you gonna find info like that?!

Offline JustJen

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Re: A little Math problem
« Reply #5 on: April 25, 2016, 06:40:21 AM »
... and it is 40.

No seriously this is the answer. Now you guys just have to figure out why. Everyone will be kicking themselves later. (no I didn't look it up. My brain just works this way.)
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Offline Outcrier

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Re: A little Math problem
« Reply #6 on: April 25, 2016, 06:41:03 AM »
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Online lonestar

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Re: A little Math problem
« Reply #7 on: April 25, 2016, 06:42:21 AM »
96

Offline JustJen

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Re: A little Math problem
« Reply #8 on: April 25, 2016, 06:45:21 AM »
... and it is 40.

No seriously this is the answer.

Maybe.

There is no maybe. :lol It is what it is. The math is right there. Don't make me explain it before it runs it's course. I'm trying to be nice here.
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Online lonestar

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Re: A little Math problem
« Reply #9 on: April 25, 2016, 06:47:21 AM »
Yeah, I'm not seeing 40 anywhere. Hopefully there's an explanation in 8 hours when I clock out. :p

Offline jasc15

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Re: A little Math problem
« Reply #10 on: April 25, 2016, 06:48:47 AM »
I got an answer that others also gave, but I'm trying to figure out how to prove if it's the only one.  It seems like it is, but thats not a good enough reason.

Offline JustJen

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Re: A little Math problem
« Reply #11 on: April 25, 2016, 06:49:00 AM »
Yeah, I'm not seeing 40 anywhere. Hopefully there's an explanation in 8 hours when I clock out. :p

I'll PM you if it starts to bug you enough.
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Offline Bolsters

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Re: A little Math problem
« Reply #12 on: April 25, 2016, 06:49:08 AM »
I see both.

Offline JustJen

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Re: A little Math problem
« Reply #13 on: April 25, 2016, 06:50:31 AM »
If everything in the OP remains true, there can only be one answer.
  ~ a.k.a. VFS in a past life :vfs:

Offline Train of Naught

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Re: A little Math problem
« Reply #14 on: April 25, 2016, 06:55:55 AM »
40 is the obvious answer, but there's probably more than one answer because the obvious solution is never the right one with these questions.
people on this board are actual music fans who developed taste in music and not casual listeners who are following current fashion trends and listening to only current commercial hits.

Offline JustJen

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Re: A little Math problem
« Reply #15 on: April 25, 2016, 06:57:26 AM »
40 is the obvious answer, but there's probably more than one answer because the obvious solution is never the right one with these questions.

You'd think it's obvious but the older I get the more I realize how unique my brain is compared to other people. You clearly share the same flair for processing trick logic questions. I bet there's a tremendous number of people who never even understand where 40 comes from.
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Offline Kotowboy

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Re: A little Math problem
« Reply #16 on: April 25, 2016, 06:59:44 AM »
Got it.

Offline BlobVanDam

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Re: A little Math problem
« Reply #17 on: April 25, 2016, 07:02:37 AM »
I instantly got 40. Can someone explain how they're coming up with other answers?
Only King could mis-spell a LETTER.
Yep. I think the only party in the MP/DT situation that hasn't moved on is DTF.

Offline Outcrier

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Re: A little Math problem
« Reply #18 on: April 25, 2016, 07:05:48 AM »
Can someone explain how they're coming up with other answers?

I will give my insight later.
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Offline JustJen

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Re: A little Math problem
« Reply #19 on: April 25, 2016, 07:06:42 AM »
I instantly got 40. Can someone explain how they're coming up with other answers?

I know, right? That's what I can't understand.
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Offline Sacul

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Re: A little Math problem
« Reply #20 on: April 25, 2016, 07:06:52 AM »
I instantly got 40. Can someone explain how they're coming up with other answers?
This.

EDIT: my father is an engineer and made him solve it and said it was 52, and his method is completely logic, what the hell is going on here :lol

Offline BlobVanDam

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Re: A little Math problem
« Reply #21 on: April 25, 2016, 07:10:00 AM »
Oh wait, I see it now. 96 also works.

I'd love to know how he got 52 though. :lol
Only King could mis-spell a LETTER.
Yep. I think the only party in the MP/DT situation that hasn't moved on is DTF.

Offline JustJen

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Re: A little Math problem
« Reply #22 on: April 25, 2016, 07:12:57 AM »
Ah okay, I was wrong about there only being one possible valid answer. Mine is the simplest of the two. BlobVanDam explained the harder one to me.

So since I'm a female and you dont' get to see this happen too often I'm sure:

I was wrong. Sort of. I mean, I was right but there was also another way to be right.

ok that's actually probably exactly how you're all used to seeing females admit wrongness. never mind. Carry on.
  ~ a.k.a. VFS in a past life :vfs:

Offline Sacul

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Re: A little Math problem
« Reply #23 on: April 25, 2016, 07:14:36 AM »
Ok now I can see how to get 96, fuck  :rollin

Offline Kotowboy

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Re: A little Math problem
« Reply #24 on: April 25, 2016, 07:19:21 AM »
Got 96 now also. A little trickier.

Offline Shadow Ninja 2.0

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Re: A little Math problem
« Reply #25 on: April 25, 2016, 07:19:53 AM »
96 is the one I got as well.

Offline Outcrier

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Re: A little Math problem
« Reply #26 on: April 25, 2016, 07:20:13 AM »
Ok. There is two answers, the obvious one being 40:

1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
8 + 11 = 40

Now, the catch is, the problem suggests you need to feel the void between 3+6 though 8+11.

1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
4 + 7 = 32
5 + 8 = 45
6 + 9 = 60
7 + 10 = 77
8 + 11 = 96

So, the real problem is, there is actually two right answers or just one?

Personally, i think 96 is the only right answer.
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Offline BlobVanDam

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Re: A little Math problem
« Reply #27 on: April 25, 2016, 07:22:06 AM »
That's not even how I came up with 96 as the alternate answer.
Only King could mis-spell a LETTER.
Yep. I think the only party in the MP/DT situation that hasn't moved on is DTF.

Offline JustJen

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Re: A little Math problem
« Reply #28 on: April 25, 2016, 07:23:18 AM »
Ok. There is two answers, the obvious one being 40:

1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
8 + 11 = 40

Now, the catch is, the problem suggests you need to feel the void between 3+6 though 8+11.

1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
4 + 7 = 32
5 + 8 = 45
6 + 9 = 60
7 + 10 = 77
8 + 11 = 96

So, the real problem is, there is actually two right answers or just one?

Personally, i think 96 is the only right answer.

I see what you're getting at but as it's laid out in the OP I would say that the - or at least *A* - correct answer is 40 because the rule is "add the sum of the previous line to the current line" and AS LAID OUT (which I made a point to say in one of my early responses ;) ) the answer would be 40.
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Offline Train of Naught

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Re: A little Math problem
« Reply #29 on: April 25, 2016, 07:23:55 AM »
Well, technically they're both wrong, of course. But following the logic of this 'puzzle', I think 40 and 96 are both equally correct, whatever that means.

my father is an engineer and made him solve it and said it was 52

I'd love to know how
people on this board are actual music fans who developed taste in music and not casual listeners who are following current fashion trends and listening to only current commercial hits.

Offline BlobVanDam

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Re: A little Math problem
« Reply #30 on: April 25, 2016, 07:24:13 AM »
Yeah, I see no catch. You wouldn't assume it's incomplete, you assume the given problem is the entire pattern to solve. And from the given information, 40 and 96 are both equally valid imo.
Only King could mis-spell a LETTER.
Yep. I think the only party in the MP/DT situation that hasn't moved on is DTF.

Offline Outcrier

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Re: A little Math problem
« Reply #31 on: April 25, 2016, 07:25:06 AM »
That's not even how I came up with 96 as the alternate answer.

You can do 8 x 11 (which is 88) + the first number (which is 8) = 96. It works too.
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Offline JustJen

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Re: A little Math problem
« Reply #32 on: April 25, 2016, 07:25:48 AM »
Yeah, I see no catch. You wouldn't assume it's incomplete, you assume the given problem is the entire pattern to solve. And from the given information, 40 and 96 are both equally valid imo.

yes, what he said.
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Offline BlobVanDam

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Re: A little Math problem
« Reply #33 on: April 25, 2016, 07:25:56 AM »
That's not even how I came up with 96 as the alternate answer.

You can do 8 x 11 (which is 88) + the first number (which is 8) = 96. It works too.

That's how I did it. Both answers work without extrapolation of additional data.
Only King could mis-spell a LETTER.
Yep. I think the only party in the MP/DT situation that hasn't moved on is DTF.

Offline Bolsters

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Re: A little Math problem
« Reply #34 on: April 25, 2016, 07:28:09 AM »
I'm more interested in how to get 52.