Math Is Fun Forum
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#226 2015-01-10 15:02:46
- ElainaVW
- Member
- Registered: 2013-04-29
- Posts: 580
Re: Permutations
Sometimes the players, but usually the place that is hosting the game.-bobbym
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#227 2015-01-10 18:47:17
Re: Permutations
Where did bobbym say it?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#228 2015-01-11 11:47:13
- ElainaVW
- Member
- Registered: 2013-04-29
- Posts: 580
Re: Permutations
He said it to me.
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#229 2015-01-11 13:06:25
Re: Permutations
Okay, that sounds like bumpkin talk
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#230 2015-01-11 21:53:47
- Toucan1
- Member
- Registered: 2015-01-11
- Posts: 2
Re: Permutations
Hi Maths Boffins! I have a permutation / combination problem and it's giving me headaches!
I have to work out how many unique codes I can get given the following restrictions..
An eight digit code must look like this:
07H15Y10
First two digits: Only possible from 00 to 23
Third digit: Only possible from A to M
Fourth and fifth digits: Only possible from 00 to 59
Sixth digit: Only possible from N to Z
Last two digits: Only possible from 01 to 30
Any help with this would be much appreciated... Thanks
Last edited by Toucan1 (2015-01-11 23:35:55)
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#231 2015-01-12 00:15:22
Re: Permutations
You'd have to multiply out all the possiblities for each of the blocks
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#232 2015-01-12 05:58:14
- Toucan1
- Member
- Registered: 2015-01-11
- Posts: 2
Re: Permutations
So 24 x 13 x 60 x 13 x 30 = 7,300,800 possible codes? Sounds about right.. thanks.
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#233 2015-01-12 12:07:14
Re: Permutations
You're welcome.
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#234 2016-10-29 03:30:46
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Permutations
Hmmm, some more evidence of the frog.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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