Jump to content


Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account.
As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends.

Of course, you can also enjoy our collection of amazing optical illusions and cool math games.

If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top.
If you have a website, we would appreciate a little link to BrainDen.

Thanks and enjoy the Den :-)
Guest Message by DevFuse
 

Photo
- - - - -

A Nine Puzzle


Best Answer Utkrisht123, 11 March 2013 - 01:56 PM

Spoiler for I think

Go to the full post


  • Please log in to reply
10 replies to this topic

#1 Debasis

Debasis

    Junior Member

  • Members
  • PipPip
  • 35 posts

Posted 11 March 2013 - 01:19 PM

Use three 9's and arrange them using the mathematical signs to form the number one.

Spoiler for Hint


  • 0

#2 Utkrisht123

Utkrisht123

    Junior Member

  • Members
  • PipPip
  • 39 posts

Posted 11 March 2013 - 01:56 PM   Best Answer

Spoiler for I think


  • 0

#3 BobbyGo

BobbyGo

    Advanced Member

  • Members
  • PipPipPip
  • 131 posts
  • Gender:Male

Posted 11 March 2013 - 03:00 PM

Spoiler for without subtraction

  • 1

#4 Utkrisht123

Utkrisht123

    Junior Member

  • Members
  • PipPip
  • 39 posts

Posted 11 March 2013 - 03:44 PM

Spoiler for another method


  • 0

#5 Debasis

Debasis

    Junior Member

  • Members
  • PipPip
  • 35 posts

Posted 12 March 2013 - 09:35 AM

Spoiler for another method

Spoiler for quote


Edited by Debasis, 12 March 2013 - 09:37 AM.

  • 0

#6 Perhaps check it again

Perhaps check it again

    Junior Member

  • Members
  • PipPip
  • 74 posts
  • Gender:Male

Posted 02 February 2014 - 11:58 PM

((9 - 9)9)! = 1


  • 0

#7 Perhaps check it again

Perhaps check it again

    Junior Member

  • Members
  • PipPip
  • 74 posts
  • Gender:Male

Posted 03 February 2014 - 02:00 AM

(9*(9 - 9))! = 1

 

((9 - 9)/9)! = 1

 

 

I was looking for the square root symbol to do:

 

(9 - sqrt(9*9))! = 1


  • 0

#8 BMAD

BMAD

    Senior Member

  • Members
  • PipPipPipPip
  • 1702 posts
  • Gender:Female

Posted 03 February 2014 - 04:11 AM

(sqrt(9)*sqrt(9))/9


  • 0

#9 Perhaps check it again

Perhaps check it again

    Junior Member

  • Members
  • PipPip
  • 74 posts
  • Gender:Male

Posted 03 February 2014 - 07:36 AM

BMAD, I purposely did not include any solution like yours, because the OP in post # 1 and post # 5

 

stated that he/she wanted a subtraction sign used among the mathematical signs.


  • 0

#10 skca

skca

    Newbie

  • Members
  • Pip
  • 2 posts

Posted 04 February 2014 - 10:16 AM

9^(9-9)=1
  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users