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Math Problem -- Grid Possibilities -- (TOUGH)

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Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 02:13:45

Here is a tough math problem I have been working on for the last 40 minutes and I finally solved it. I am pretty stupid at math, so I thought I would see how many others on here can solve it.


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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 03:44:24

Let me know it is too tough and I will post the solution. And you will probably kick yourself in the head when you see how truly easy it is.
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby MD » Sun 04 Nov 2007, 03:50:54

it's as easy as 1+2
Stop filling dumpsters, as much as you possibly can, and everything will get better.

Just think it through.
It's not hard to do.
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 03:56:15

Than what is the anwer? and Yes, you are on the right track,
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby Andrew_S » Sun 04 Nov 2007, 04:08:32

330?

(11 choose 4)
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby kadoomsoon » Sun 04 Nov 2007, 04:08:59

2^10+2^9+2^8+2^7+1

whatever that is.
So, why you want to figure this out?

There is only one correct path all other paths are wrong And if you can't figure it out you can never be a 33 degree brick layer.
Last edited by kadoomsoon on Sun 04 Nov 2007, 04:21:57, edited 1 time in total.
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 04:15:49

$this->bbcode_second_pass_quote('kadoomsoon', '2')^10+2^9+2^8+2^7+10

whatever that is.
So, why you want to figure this out?

There is only one correct path all other paths are wrong And if you can't figure it out you can never be a 33 degree brick layer.


NOPE

I already figured it out, I just did it for fun. I like these kind of problems


Sort of like if you have 6 teams what are all of the possibilities of each team placing 1st 2nd and 3rd
Last edited by jasonraymondson on Sun 04 Nov 2007, 04:24:34, edited 2 times in total.
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 04:17:10

$this->bbcode_second_pass_quote('Andrew_S', '3')30?

(11 choose 4)


WTF no
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby kadoomsoon » Sun 04 Nov 2007, 04:23:11

Yep.
(Call me a shill)
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby Andrew_S » Sun 04 Nov 2007, 04:24:30

While looking for Pascal's triangle I found this nice animated Quincunx.

Quincunx -mathsisfun.com
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby Carlhole » Sun 04 Nov 2007, 05:07:31

5115
Last edited by Carlhole on Sun 04 Nov 2007, 07:55:47, edited 1 time in total.
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby Narz » Sun 04 Nov 2007, 05:46:59

$this->bbcode_second_pass_quote('Andrew_S', 'W')hile looking for Pascal's triangle I found this nice animated Quincunx.

Quincunx -mathsisfun.com

That thing's neat. :o
“Seek simplicity but distrust it”
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby Andrew_S » Sun 04 Nov 2007, 05:51:52

$this->bbcode_second_pass_quote('jasonraymondson', '')$this->bbcode_second_pass_quote('Andrew_S', '3')30?

(11 choose 4)


WTF no


Whoops, 11 choose 4 is without replacement but we need to allow replacement.

Okay, 11 choose 4 times factorial 4. So:

330 times 24 = 7 920
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby SteinarN » Sun 04 Nov 2007, 05:57:53

1001
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 12:57:51

$this->bbcode_second_pass_quote('SteinarN', '1')001


nope
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 12:59:00

$this->bbcode_second_pass_quote('Andrew_S', '')$this->bbcode_second_pass_quote('jasonraymondson', '')$this->bbcode_second_pass_quote('Andrew_S', '3')30?

(11 choose 4)


WTF no


Whoops, 11 choose 4 is without replacement but we need to allow replacement.

Okay, 11 choose 4 times factorial 4. So:

330 times 24 = 7 920


also wrong but you are on the right path using factorials
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby Andrew_S » Sun 04 Nov 2007, 13:40:49

$this->bbcode_second_pass_quote('SteinarN', '1')001


I wrote a little C program to do it by brute force and I also get 1001. Do you have an algebraic solution?
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 14:06:41

$this->bbcode_second_pass_quote('Andrew_S', '')$this->bbcode_second_pass_quote('SteinarN', '1')001


I wrote a little C program to do it by brute force and I also get 1001. Do you have an algebraic solution?


Yes, but I am waiting on PMS and a few of the other experts to take a crack at it. Alot of people have looked at it, but have ran away scared.
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby Bas » Sun 04 Nov 2007, 14:10:19

uhm, 462?
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Re: Math Problem -- Grid Possibilities -- (TOUGH)

Unread postby jasonraymondson » Sun 04 Nov 2007, 14:11:09

$this->bbcode_second_pass_quote('Bas', 'u')hm, 462?


Its not a guessing game. It is pure simple algebra
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