Math puzzle: abcd = a + b + c + d (Topic)

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Math puzzle: abcd = a + b + c + d

Nov 11 2010, 3:15 am
By:

Aristocrat

Pages: 1

Nov 11 2010, 3:15 am

Aristocrat Post #1

Quote

\SHAMEIMARU/ says:
alright
so
i went to a convenience store
and i bought
four things
and i added up the prices in my head so i would know how much to pay
and it came out to 7.11
and then went i went to the register
i saw that the clerk had pressed the multiplication key instead of the addition key when calculating the price
and i was about to say something
but
lo and behold
the answer came out to the same thing
what were the prices of the four items?

I tried and tried and could not solve 7.11 = abcd = a + b + c + d. Does anyone want to take a stab at this challenge?

None.

Nov 11 2010, 3:31 am

Vrael Post #2

Hint:
711 can be factored into 3*3*79

None.

Nov 11 2010, 4:09 am

Fire_Kame Post #3

wth is starcraft

$3.16, $1.20, $1.50, $1.25.

Nov 11 2010, 4:26 am

Azrael Post #4

Quote from

Vrael

Hint:
711 can be factored into 3*3*79

Thanks for spending five seconds on a calculator to provide that information.

Nov 11 2010, 4:26 am

payne Post #5

:payne:

Quote from name:Azrael.Wrath

Quote from

Vrael

Hint:
711 can be factored into 3*3*79

Thanks for spending five seconds on a calculator to provide that information.

I lol'd.

None.

Nov 11 2010, 5:11 am

Vrael Post #6

Oh yeah, that was my bad that wasn't even helpful. I just glanced at the problem and didn't actually solve it, I just assumed the answer would have something to do with the factors of 711.

None.

Nov 11 2010, 5:33 am

CecilSunkure Post #7

Quote from

Fire_Kame

$3.16, $1.20, $1.50, $1.25.

Way to use google you cheater.

Spoiler >>
http://answers.yahoo.com/question/index?qid=20070913141854AAH3Rqp

None.

Nov 11 2010, 6:31 am

Vrael Post #8

well according to that yahoo answer my quick hint was actually right

None.

Nov 12 2010, 1:52 am

Fire_Kame Post #9

wth is starcraft

Quote from

CecilSunkure

Quote from

Fire_Kame

$3.16, $1.20, $1.50, $1.25.

Way to use google you cheater.

Spoiler >>
http://answers.yahoo.com/question/index?qid=20070913141854AAH3Rqp

Google what now?

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[06:02 pm]

Zoan -- of course it isn't full understanding. You could ask "is the mechanism by which this counterexample blows up the ONLY mechanism possible for an initial configuration to blow up?"

[05:48 pm]

Zoan -- ppl do it all the time in PDEs

[05:47 pm]

Zoan -- Heinermann

Heinermann shouted: it also didn't solve that problem but hey as long as the investors are pleased

Constructing a counterexample is answering the question: "Is Navier Stokes well posed?" in the negative

[05:44 pm]

NudeRaider -- I only heard about it, didn't any news article, so what did it do then?

[05:43 pm]

Heinermann -- it also didn't solve that problem but hey as long as the investors are pleased

[05:39 pm]

NudeRaider -- I have no idea tbh. All I know no human was ever able to solve it, but there's at least a few that beat portal

[05:32 pm]

Zoan -- Navier Stokes is not that esoteric I thought

[04:32 pm]

NudeRaider -- Zoan

Zoan shouted: I find it kind of sad that on the same day it was announced AI solved Navier Stokes, it was also announced AI beat Portal, and there's a good deal of people who don't know which is more impressive

you find it sad not everyone is a math nerd?

[03:25 pm]

NudeRaider -- (and yes, I capitalized that correctly :ego:

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