How does this mathematical trick work?

  • 8 Replies
  • 3090 Views

0 Members and 1 Guest are viewing this topic.

*

Offline Carolyn

  • Neilep Level Member
  • ******
  • 3761
    • View Profile
How does this mathematical trick work?
« on: 19/02/2008 05:29:10 »
I got this off of another forum.  Can anyone explain how this works?  Also, why do the symbols change everytime you try again?

The Amazing Mystical Mind Reader





*Mods, if I'm in the wrong forum please move. [:)]
« Last Edit: 04/03/2008 23:47:15 by chris »
Carolyn

*

Offline Carol-A

  • Sr. Member
  • ****
  • 141
    • View Profile
Re: How does this mathematical trick work?
« Reply #1 on: 19/02/2008 07:22:23 »
I sent you a private message.... wouldn't want to give it away to everyone too soon!

BTW, your link is faulty, you have too many http's in there

*

Offline Karen W.

  • Moderator
  • Naked Science Forum GOD!
  • *****
  • 31660
  • "come fly with me"
    • View Profile
Re: How does this mathematical trick work?
« Reply #2 on: 19/02/2008 07:58:19 »
Carolyn, I removed the extra http for you!! The link works fine now!

"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

*

lyner

  • Guest
Re: How does this mathematical trick work?
« Reply #3 on: 19/02/2008 09:32:21 »
Isn't arithmetic wonderful?
How about doing the same thing in another number base?

*

Offline Carol-A

  • Sr. Member
  • ****
  • 141
    • View Profile
Re: How does this mathematical trick work?
« Reply #4 on: 19/02/2008 09:47:44 »
Would that work?

*

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • 20602
    • View Profile
Re: How does this mathematical trick work?
« Reply #5 on: 19/02/2008 09:59:32 »
*sheepy saves the day*... And I have corrected it so this time the link does actually take you to the right place !

Remember girlies.....you are girlies !!...you really must factor this in to when you're working things out !!  [;D]
Men are the same as women, just inside out !

*

Offline Carolyn

  • Neilep Level Member
  • ******
  • 3761
    • View Profile
Re: How does this mathematical trick work?
« Reply #6 on: 19/02/2008 17:14:10 »
I sent you a private message.... wouldn't want to give it away to everyone too soon!

BTW, your link is faulty, you have too many http's in there

Thanks Carol!  Now I feel silly that I didn't figure it out myself. [:)]
Carolyn

*

Offline Carolyn

  • Neilep Level Member
  • ******
  • 3761
    • View Profile
Re: How does this mathematical trick work?
« Reply #7 on: 19/02/2008 17:21:13 »
*sheepy saves the day*... And I have corrected it so this time the link does actually take you to the right place !

Remember girlies.....you are girlies !!...you really must factor this in to when you're working things out !!  [;D]

Hmph!

Thank you for correcting the link.

It must be burdensome to a boy sheep in high heels and womens lingerie and be as clever as ewe are.
Carolyn

*

lyner

  • Guest
Re: How does this mathematical trick work?
« Reply #8 on: 19/02/2008 22:04:08 »
Would that work?
Well - you will notice that, for all numbers from 10 to 19, the answer is always 9, for all numbers from 20 to 29, the answwer is always 18 . . . and so on 27,36.
Using the unfamiliar symbols disguises this.

If you did it to base 8, the answers would be [7],[16[, [25] for [10] to [17],[20] to 27], [30] to [37]. I think my sums are correct. I leave it to the student to work out the results for base 16.