How the hell does this work? Very very strange

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-- How the hell does this work? Very very strange

Posted by Jason_R on Jul-17-2006 18:35:

How the hell does this work? Very very strange

I recived this link in an email.

http://www.milaadesign.com/wizardy.html

I usally ignore such things but I decided to give this a go and the damm things been right every time! Can someone explain to me how the hell it works?

Posted by wizniz on Jul-17-2006 18:41:

every number you could get has the same symbol im guessing

Posted by Sunsnail on Jul-17-2006 18:42:

all possible answers share the same symbol. the symbol changes each time, but all answers still share the same symbol

Posted by OrZonE on Jul-17-2006 18:49:

Easy:

You choose a number
N

which can be written down as

10x + y = N

Now, they want you to subtract the sum of the two digits of the number, so...
10x + y - (x + y) = 9x

So the number you get will always be a multple of 9, and if you check multiples of 9 always have the same symbol.

BTW, this is ancient

Posted by THE_Chris on Jul-17-2006 18:50:

Seen these before.

No matter what numbers you pick, your answer is a multiple of 9.

quote:

Pick a random 2 digit number.

= 10x + y (eg 10*2 = 20. Then add 3. 23)

Add the digits.

= x + y (2+3 = 5)

Subtract from the random number.

= 10x + y - (x + y)
= 10x + y - x - y
= 10x - x
= 9x

ie: 23 - 5 = 18.

2*9 = 18

If you look, every symbol for a multiple of 9 ( 9,18,27,36 etc) is the same.

Its the only answer you can get, so it appears magic.

Posted by placebo on Jul-17-2006 18:51:

Re: How the hell does this work? Very very strange

quote:
Originally posted by Jason_R
I recived this link in an email.

http://www.milaadesign.com/wizardy.html

I usally ignore such things but I decided to give this a go and the damm things been right every time! Can someone explain to me how the hell it works?

Welcome to the internet.

Posted by Jason_R on Jul-17-2006 18:56:

quote:
Originally posted by OrZonE
Easy:

You choose a number
N

which can be written down as

10x + y = N

Now, they want you to subtract the sum of the two digits of the number, so...
10x + y - (x + y) = 9x

So the number you get will always be a multple of 9, and if you check multiples of 9 always have the same symbol.

BTW, this is ancient

THANKS

Posted by Ygrene on Jul-17-2006 19:09:

It's because Chuck Norris is reading your mind!

Posted by OrZonE on Jul-17-2006 19:10:

quote:
Originally posted by Jason_R
THANKS

Enjoy!