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Maths Puzzle!

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Jagdtiger

Determine x in this loop:

9 – 80 – 63- 44 - x – 9 – 80 – 63 – 44 -……

Show your work.

Copy of Portal 2 for whoever first posts the correct answer in this thread. (No, I don't know it yet haha)

PS: I swear this isn't homework.

8 years ago*

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38 Comments
BloodHood

23 =d

8 years ago
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RedDevilMM

no idea what to do ;_; oh well, nice gib tho :)

8 years ago
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Oppenh4imer

I found x :) It is located between 44 and 9. Isn't "determine x" more accurate?

Edit: My guess would be 27.

8 years ago
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Jagdtiger

Well, there :)

Any reason why though?

8 years ago
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Oppenh4imer

9x9-1;7x9; 5x9-1; 3x9

8 years ago
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Jagdtiger

But then wouldn't the next one be 8? :v

8 years ago
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Oppenh4imer

Yes, but the loop is just repeated after 4 numbers :)

8 years ago
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RedDevilMM

I believe you are right at least :P otherwise it wouldn't be a loop right?

8 years ago
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Jagdtiger

Well, I guess it's possible, but it seems a bit forced. :s

You'll still get your gift if I don't have a satisfactory answer in ~30 mins :)

8 years ago
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Oppenh4imer

Of course I am right, I teach maths. If you don't like a problem, invent/define something that the problem is solved.
Vom Namen her sprichst du deutsch. Frei nach dem Motto: "Wie fängt ein Mathematiker einen Löwen? Er stellt sich in einen Käfig und definiert sich als aussen."
I own P2 already, give it to someone else.

8 years ago
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8 years ago
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Oppenh4imer

Be very careful with jokes like that. It might be considered begging and earn you a 4 days suspension. Check here.

8 years ago
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RedDevilMM

ow, no, didn't mean it like begging, after all, I said to do it fairly, not just giving it to me.

best way would probably be a new giveaway, because technically, you already solved it, so it would just be a matter of copy pasting your answer, that would not be a fair gib right?

8 years ago
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faragona

Supports don't care if you are joking or not. They suspend all begging or joking (about begging) alike.

8 years ago
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RedDevilMM

didn't know that, kind of new to this site, but deleted the comment, hope it is ok like this

8 years ago
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Oppenh4imer

As the comment is deleted and you are not suspended, it seems to be fine. We commented, because you are new to the site :)
Welcome!
If you have not done so, may I suggest you read the FAQ and guidelines.
There are also a couple of guides out there. Enjoy your stay!

8 years ago
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RedDevilMM

Thanks Oppen :)

8 years ago
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faragona

You are lucky no mods are looking at this thread (or actually online at all). Last time I saw another user got suspended in 30 seconds right after I warned him. Just bad luck :P

8 years ago
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RedDevilMM

OMG, than you people really just saved me I guess :) thanks

8 years ago
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faragona

Delete your comment, or else you may get suspension for begging.

8 years ago
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RedDevilMM

ok, did it, but as I explained, wasn't meant like that

8 years ago
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tigerelfe

totally unrelated
but are you rly from oppenheim? :3

8 years ago
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Oppenh4imer

Nope. Did not even know until now there was a town with that name. I derived my name from the physicist.

8 years ago
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tigerelfe

xD ok
tya for answering my creepy question though :3

8 years ago
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Jagdtiger

I'm actually still learning German and can't really hold a conversation, but I understood that sentence :)

Mainly because I do know it in English :p

8 years ago
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juj343

i'm gonna say 0

8 years ago
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murmel44

My guess is x = 31.

Here's the assumed rule of the loop

(first digit) ^ 2 - 1 + (second digit; 0 for a single-digit number) ^ 2

8 years ago
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murmel44

We have:

80 = 9 ^ 2 - 1 + 0 ^ 2
63 = 8 ^ 2 - 1 + 0 ^ 2
44 = 6 ^ 2 - 1 + 3 ^ 2
31 = 4 ^ 2 - 1 + 4 ^ 2
9 = 3 ^ 2 - 1 + 1 ^ 2

8 years ago
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RedDevilMM

well played m8

8 years ago
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Yukiin

I bow down to your ingenuous imagination.

8 years ago
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murmel44

Thanks!

8 years ago
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Jagdtiger

That makes sense, thank you! I'll add you on Steam and send you the gift.

8 years ago
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murmel44

Yippee, I'm looking forward to the game.

8 years ago
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Diddles92

Am I wrong to say that works but by doing that you're actually using the 9 as if it was 90? Still want you to get the game and hope you already have it but I like this puzzle, I'm interested to really know what x is :) Spot the nerd :)

8 years ago
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murmel44

If we represent all numbers with two digits (e.g., 09), we can slightly modify the rule to:

(greater digit) ^ 2 - 1 + (lower digit) ^ 2

(Here, greater and lower correspond to the actual value, not the index.)

8 years ago
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Diddles92

That was what i did to make it work in my head earlier, just wanted to clarify it, hope you enjoy the game ^_^

8 years ago
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Timo654

x=25

8 years ago
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8 years ago
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Closed 8 years ago by Jagdtiger.