Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Today's Puzzle

16 May 2013   #1
mitchell65

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 
Today's Puzzle

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)
My System SpecsSystem Spec
16 May 2013   #2
boohbah

Microsoft Windows 7 Home Premium 64-bit 7600
 
 

Im FIIK
My System SpecsSystem Spec
16 May 2013   #3
mitchell65

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

Quote   Quote: Originally Posted by boohbah View Post
Im FIIK
So what's new in Truro?
My System SpecsSystem Spec
.

16 May 2013   #4
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)
2 * 2 * 2 = 8 combinations.
  • 777
  • 778
  • 787
  • 788
  • 877
  • 878
  • 887
  • 888
My System SpecsSystem Spec
16 May 2013   #5
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)
2 * 2 * 2 = 8 combinations.
  • 777
  • 778
  • 787
  • 788
  • 877
  • 878
  • 887
  • 888
But 778 is the same as 787 is the same as 877
788 is the same as 878 is the same as 887
My System SpecsSystem Spec
16 May 2013   #6
Kari

Microsoft Community Contributor Award Recipient

 

Statistically not. When counting the probability of a certain combination, then you need to count every disk having 2 possibilities, giving the formula 2*2*2 = 8 = 2. Statistically 778 is not the same as 787 or 877 when analyzing results.
My System SpecsSystem Spec
16 May 2013   #7
boohbah

Microsoft Windows 7 Home Premium 64-bit 7600
 
 

i see your not from Truro kari (or helston! ) , nor me im Glaswegian.
My System SpecsSystem Spec
16 May 2013   #8
Kari

Microsoft Community Contributor Award Recipient

 

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...
My System SpecsSystem Spec
16 May 2013   #9
mitchell65

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

Quote   Quote: Originally Posted by Kari View Post
Statistically not. When counting the probability of a certain combination, then you need to count every disk having 2 possibilities, giving the formula 2*2*2 = 8 = 2. Statistically 778 is not the same as 787 or 877 when analyzing results.
True in a way but please read the puzzle again. Forget numbers and look at the puzzle as it is written. There are four ways the discs can land
1) three sevens
2) three eights
3) two sevens and one eight
4) two eights and one seven

Answer four
Q.E.D.
My System SpecsSystem Spec
16 May 2013   #10
boohbah

Microsoft Windows 7 Home Premium 64-bit 7600
 
 

My System SpecsSystem Spec
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar help and support threads
Thread Forum
Puzzle By This
Was watching my computer and the gadget show high CPU usage. Click on it expecting many one of my programs was running in the background but noticed the following screen shot. Does anyone know what DSD_5996 is?
General Discussion
Partitions puzzle
Here's a few screenshots all from the same machine. Diskpart shows: Disk Management shows:
Installation & Setup
Forum puzzle
I was trying out how a picture as a link would work. I tried with 2 identical strings. The first one would not work and the second worked. Go figure - as far as I can see they are exactly the same. Does anybody see a difference. If you copy/paste them from the script into a Notepad or Wordpad, they...
Chillout Room
Monitor Puzzle
Re: 7 o/s. During running of a system test, a pop-up appeared saying the following; Current input timing is not supported by the monitor display. Change input timing to 1600x900 60Hz. Because I was stuck and it wouldn't go any further, no matter what buttons I pushed on my monitor, I shut it down...
Graphic Cards
Network puzzle
Can anybody help before I become even more hairless! I've been trying to sort out this for many hours. I have - a recently purchased Windows 7 Pro Lenovo T420 laptop which is wireless an XP Pro IBM T43 wireless laptop a Dell XP Home desktop connected to my wireless router by Ethernet...
Network & Sharing
slow internet puzzle
hi every1, I had win 7(32 bit) ultimate installed and while downloading from sites like mediafire, megaupload I used to get transfer rate upto 300 Kb/sec (my broadband speed is 128b KBPS) then due to some problem I had to format my HD and install vista which came along with my PC. Now the...
Network & Sharing


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 07:31.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App