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Windows 7: Today's Puzzle

16 May 2013   #11
Kari

Microsoft Community Contributor Award Recipient

 

Quote   Quote: Originally Posted by mitchell65 View Post
There are three discs, Each on has a "7" on one side and an "8" on the other side. If thrown up radomly, how many combinations of numbers is possible. (Example "777" "888" etc)
If asked like this, then [Disk 1:7, Disk 2:7, Disk 3:8] is not the same combination than [Disk 1:7, Disk 2:8, Disk 3:7]. The answer is 8 combinations.
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16 May 2013   #12
mitchell65

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Kari View Post
Quote   Quote: Originally Posted by boohbah View Post
i see your not from Truro kari (or helston! ) , nor me im Glaswegian.
I'm not sure if that's flattery or mockery, so no comments...
Don't worry Kari, I'm from Helston about 15 miles west of Boobah and I've got no idea what he talks about most of the time. A Glaswegian mixed with a bit of Cornish is a volatile subtance in my view!
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16 May 2013   #13
Joan Archer

Windows 7 Ultimate SP1 32 bit/Windows 10 64bit
 
 

Well you lost me in the first post.
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.

16 May 2013   #14
mitchell65

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Kari View Post
Quote   Quote: Originally Posted by mitchell65 View Post
There are three discs, Each on has a "7" on one side and an "8" on the other side. If thrown up radomly, how many combinations of numbers is possible. (Example "777" "888" etc)
If asked like this, then [Disk 1:7, Disk 2:7, Disk 3:8] is not the same combination than [Disk 1:7, Disk 2:8, Disk 3:7]. The answer is 8 combinations.
But to get to your solution you need to add a new dimension which was not in the original puzzle!
My System SpecsSystem Spec
16 May 2013   #15
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Quote   Quote: Originally Posted by mitchell65 View Post
Don't worry Kari, I'm from Helston about 15 miles west of Boobah and I've got no idea what he talks about most of the time. A Glaswegian mixed with a bit of Cornish is a volatile subtance in my view!
Who does?
Next puzzle?
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17 May 2013   #16
A Guy

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

What's a puzzle?

A Guy
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17 May 2013   #17
Kari

Microsoft Community Contributor Award Recipient

 

Quote   Quote: Originally Posted by A Guy View Post
What's a puzzle?

A Guy
A puzzle is a problem or enigma that tests the ingenuity of the solver. In a basic puzzle, one is intended to put together pieces in a logical way in order to come up with the desired solution. Puzzles are often contrived as a form of entertainment, but they can also stem from serious mathematical or logistical problems — in such cases, their successful resolution can be a significant contribution to mathematical research.

(Puzzle - Wikipedia, the free encyclopedia)

Kari
My System SpecsSystem Spec
17 May 2013   #18
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Quote   Quote: Originally Posted by Kari View Post
Quote   Quote: Originally Posted by mitchell65 View Post
There are three discs, Each on has a "7" on one side and an "8" on the other side. If thrown up radomly, how many combinations of numbers is possible. (Example "777" "888" etc)
If asked like this, then [Disk 1:7, Disk 2:7, Disk 3:8] is not the same combination than [Disk 1:7, Disk 2:8, Disk 3:7]. The answer is 8 combinations.
Kari is correct - in statistical theory combinations refers to permutations. Two different numbers on each of 3 disks is expressed as 2!3 (two factorial 3) which is 2 x 2 = 4 x 2 = 8.

The total number of combinations is 8.
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17 May 2013   #19
Kari

Microsoft Community Contributor Award Recipient

 

Quote   Quote: Originally Posted by Golden View Post
The total number of combinations is 8.
Thank you .
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17 May 2013   #20
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

Total number of events = 4 as John expressed.
But the total number of outcomes are sample space of the experiment, which is 2 to the power 3 as Kari answered.

As the combinations of possible numbers is asked, Kari's answer is right. If the question is that how many sets of outcomes are possible (under which condition 778=787=877; all are two sevens and one eight), John's answer would be right.
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