"Discover Cooking, Discuss Life."

Go Back   Discuss Cooking - Cooking Forums > The Back Porch > Off Topic Discussions
Reply
 
Thread Tools Display Modes
 
Old 10-18-2007, 01:09 PM   #11
Chef Extraordinaire
 
pdswife's Avatar
 
Join Date: Nov 2004
Location: Washington
Posts: 20,308
Send a message via AIM to pdswife Send a message via MSN to pdswife Send a message via Yahoo to pdswife
wow..... ok... how does it work?
__________________

__________________
In three words I can sum up everything I've learned about life: it goes on. Robert Frost
pdswife is offline   Reply With Quote
Old 10-18-2007, 05:15 PM   #12
Executive Chef
 
miniman's Avatar
 
Join Date: Aug 2006
Location: Basingstoke, England
Posts: 4,687
My dear wife has worked it out. The numbers in your final number always add up to 9 (or multiple) so the digits you give the puzzle are subtracted from 9, the remainder is the number you circled.
__________________

__________________
miniman is offline   Reply With Quote
Old 10-18-2007, 06:11 PM   #13
DC's Angel
 
Buck's Avatar
 
Join Date: Sep 2006
Location: Bardwell. Kentucky USA
Posts: 1,500
I have a better explanation.

It's the work of the devil and we're all doomed.

Abandon all hope.

Sob
__________________
If we weren't meant to eat animals, then why are they made of meat?
Buck is offline   Reply With Quote
Old 10-18-2007, 06:13 PM   #14
Head Chef
 
keltin's Avatar
 
Join Date: Jun 2007
Location: Down South in Alabama
Posts: 2,285
Send a message via AIM to keltin
Heh, I figured it out.


Spoiler Alert!
Don't read any further unless you want to know how it is done!








This is a trick based on a magician's technique called a ďForceĒ and thatís when the magician causes ("forces") you to select a specific item or group of items, yet you think you had total free will.

The trick tells you to pick a 3 or 4 digit number. Then it has you mix up those digits for another number. Then you subtract the two, and the you then pick a number from the result of that subtraction. Thatís the ďforceĒ. You think you are picking a random number, but itís not. There is a finite set of numbers that will happen because of this limited subtraction scheme.

Letís look at a 3 digit combo of the numbers 1, 2, & 3. The largest number you can make is 321, and the smallest is 123. The total unique numbers that you can make are 6 which are:

The three hundreds = 321, 312
The two hundreds = 231, 213
The one hundreds = 132, 123

Total unique subtractions with all number combinations are 15. This means there are only 15 new numbers that you can eventually choose (circle) your number from that he must ďguessĒ. And of those 15, two combinations are not allowed because the result is a single 9. Further, you arenít allowed to choose a 0 which would have stumped this trick, but by disallowing the zero, itís easy to make a look-up table to cross reference the remaining digits you type in to the limited numbers that can actually be made.

Here are all the possible subtractions that can happen starting with the largest number of 321 and working down:

321
312 = 9 <--not allowed, single digit!
213 = 108 <--canít choose a Zero
231 = 90 <--canít choose a Zero
132 = 189
123 = 198

312
213 = 99
231 = 81
123 = 189
132 = 180 <--canít choose a Zero

231
213 = 18
123 = 108 <--canít choose a Zero
132 = 99

213
123 = 90 <--canít choose a Zero
132 = 81

132
123 = 9 <--Not allowed, single digit!


So, if you did 312 Ė 123 = 198 and you circle the 9, you have to type in 1 & 8. By typing in 1 & 8, that means you had a three digit remainder. Look at that list, of all the 3 digit remainders with a 1 & 8 in them (remember 0 is not allowed), the only number left for you to have chosen is a 9.

Or, say you chose 312 Ė 132 = 180. You canít choose the 0, so you choose 1. Now you have to type in 8 & 0. Of all the 3 digit numbers with 8 & 0, the third number is always....you guessed it........1.

The interesting thing is, those results are the same no matter what 3 digits you picked! Thatís because you are working with the same 3 digits for the subtraction, thus the magnitude of difference between the two numbers is always the same, no matter what three you pick. 987 Ė 789 = 198 which is the same as 321 -123 = 198! The magnitude of the difference is always the same, no matter the 3 digits you pick to start with, so the resulting remainder is always the same.

The same thing applies to a 4 digit number, with the only difference being there are more remainders, but it is still a finite list of numbers!

Mystery solved!
__________________
keltin is offline   Reply With Quote
Old 10-18-2007, 06:19 PM   #15
Certified Pretend Chef
 
Andy M.'s Avatar
 
Join Date: Sep 2004
Location: Massachusetts
Posts: 41,352
Cool. Thanks for the explanation.
__________________
"If you want to make an apple pie from scratch, you must first create the universe." -Carl Sagan
Andy M. is online now   Reply With Quote
Old 10-18-2007, 06:21 PM   #16
Certified Pretend Chef
 
Andy M.'s Avatar
 
Join Date: Sep 2004
Location: Massachusetts
Posts: 41,352
Try this trick.


The answer to "How did they do that?" is much easier here and you don;t have to know any math to figure it out!
__________________
"If you want to make an apple pie from scratch, you must first create the universe." -Carl Sagan
Andy M. is online now   Reply With Quote
Old 10-18-2007, 06:25 PM   #17
Head Chef
 
keltin's Avatar
 
Join Date: Jun 2007
Location: Down South in Alabama
Posts: 2,285
Send a message via AIM to keltin
Quote:
Originally Posted by Andy M. View Post
Try this trick.


The answer to "How did they do that?" is much easier here and you don;t have to know any math to figure it out!
I know how they do that one!

But I'll let the others play with it.
__________________
keltin is offline   Reply With Quote
Old 10-18-2007, 07:01 PM   #18
Master Chef
 
Join Date: Aug 2006
Location: Monroe, Michigan
Posts: 5,912
Send a message via Yahoo to Barb L.
Wow thats pretty cool - and so right on !
__________________
Grandma's Boys - Isaiah (11) Cameron (3 )
Barb L. is offline   Reply With Quote
Old 10-18-2007, 09:36 PM   #19
Traveling Welcome Wagon
 
Join Date: Apr 2004
Location: Somewhere, US
Posts: 15,919
Quote:
Originally Posted by Andy M. View Post
Try this trick.


The answer to "How did they do that?" is much easier here and you don;t have to know any math to figure it out!
I'm amazed at how many of the people on my "send jokes, inspirational stuff, and useless junk" list (lol) fall for this one!

Barbara
__________________
Barbara L is offline   Reply With Quote
Old 10-18-2007, 10:42 PM   #20
Head Chef
 
Join Date: Oct 2004
Location: Boston area
Posts: 2,488
What about what miniman's wife's answer? Is that right?

Lee
__________________

__________________
QSis is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Discuss Cooking on Facebook

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 01:44 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.