wu :: forums
wu :: forums - Match Equations

Welcome, Guest. Please Login or Register.
Aug 12th, 2022, 5:50pm

RIDDLES SITE WRITE MATH! Home Home Help Help Search Search Members Members Login Login Register Register
   wu :: forums
   riddles
   easy
(Moderators: Icarus, ThudnBlunder, william wu, towr, SMQ, Grimbal, Eigenray)
   Match Equations
« Previous topic | Next topic »
Pages: 1  Reply Reply Notify of replies Notify of replies Send Topic Send Topic Print Print
   Author  Topic: Match Equations  (Read 2050 times)
BNC
Uberpuzzler
*****





   


Gender: male
Posts: 1732
Match Equations  
« on: Jan 29th, 2003, 1:53am »
Quote Quote Modify Modify

In each of the following three, move a single match to form valid equations. The = and + are composed of two matches each.
 
1. \/|+|=\/
 
2. \/|+|=\/|
 
3. \/|+|=|||
 
 
// title modified by willywutang 2:54 AM 2/4/2003
« Last Edit: Feb 4th, 2003, 2:54am by william wu » IP Logged

How about supercalifragilisticexpialidociouspuzzler [Towr, 2007]
towr
wu::riddles Moderator
Uberpuzzler
*****



Some people are average, some are just mean.

   


Gender: male
Posts: 13730
Re: Some more match riddles  
« Reply #1 on: Jan 29th, 2003, 2:27am »
Quote Quote Modify Modify

1. \/+|=\/|
 
2. \/||-|=\/|
 
3. \/|-||=|||
IP Logged

Wikipedia, Google, Mathworld, Integer sequence DB
BNC
Uberpuzzler
*****





   


Gender: male
Posts: 1732
Re: Some more match riddles  
« Reply #2 on: Jan 29th, 2003, 2:54am »
Quote Quote Modify Modify

3. 6 - 2 = 3  Huh
IP Logged

How about supercalifragilisticexpialidociouspuzzler [Towr, 2007]
wowbagger
Uberpuzzler
*****





242002184 242002184    


Gender: male
Posts: 727
Re: Some more match riddles  
« Reply #3 on: Jan 29th, 2003, 4:02am »
Quote Quote Modify Modify

3. \/| / || = |||
which comes about by taking the horizontal match of the "+" and using it as a slash and the remaining vertical match forming a 2 with the match to its right.
« Last Edit: Jan 29th, 2003, 4:04am by wowbagger » IP Logged

"You're a jerk, <your surname>!"
BNC
Uberpuzzler
*****





   


Gender: male
Posts: 1732
Re: Some more match riddles  
« Reply #4 on: Jan 29th, 2003, 4:52am »
Quote Quote Modify Modify

on Jan 29th, 2003, 4:02am, wowbagger wrote:
3. \/| / || = |||
which comes about by taking the horizontal match of the "+" and using it as a slash and the remaining vertical match forming a 2 with the match to its right.

 
Nice! I didn't think if that one...
IP Logged

How about supercalifragilisticexpialidociouspuzzler [Towr, 2007]
Phil
Newbie
*





   


Posts: 38
Re: Some more match riddles  
« Reply #5 on: Jan 29th, 2003, 6:17am »
Quote Quote Modify Modify

3. But that requires moving two matches. Instead, take one of the ||| match sticks and lay it across the = to make an unequal sign, or angle one of the = matchsticks to make an awkward but readable > sign.
How about this one? (and no touching the equal sign)
V+I=IX
IP Logged
wowbagger
Uberpuzzler
*****





242002184 242002184    


Gender: male
Posts: 727
Re: Some more match riddles  
« Reply #6 on: Jan 29th, 2003, 6:34am »
Quote Quote Modify Modify

on Jan 29th, 2003, 6:17am, Phil wrote:
3. But that requires moving two matches.

No, it doesn't. If the "+" in the original position lies near the "II", but quite far from the "VI", I'd say it works just fine.
 
Quote:
Instead, take one of the ||| match sticks and lay it across the = to make an unequal sign, or angle one of the = matchsticks to make an awkward but readable > sign.

What you end up with in this case is hardly an equation, is it?
 
Quote:
How about this one? (and no touching the equal sign)
V+I=IX

Are you expecting \/ + | = \| / or something like that? (I assume the "one match only"-restriction applies)
IP Logged

"You're a jerk, <your surname>!"
RexJacobus
Newbie
*





   


Gender: male
Posts: 14
Re: Some more match riddles  
« Reply #7 on: Jan 31st, 2003, 7:25am »
Quote Quote Modify Modify

_
l_l
 
I can't quite get the top match to line up just right but I think you can probably imagine four matches set in a square.  Move one and only one and form a completely different square.
 
Rex
IP Logged
aero_guy
Senior Riddler
****





   
Email

Gender: male
Posts: 513
Re: Some more match riddles  
« Reply #8 on: Jan 31st, 2003, 11:43am »
Quote Quote Modify Modify

hmm, puzzling.  This isn't what you are looking for, but you can break one.
 
 _ _|    |
|_ _|
 
becomes
 
|_   |
|_|_|
 
Heck, I can make as many squares as you like, though there is the pesky leftover parts sticking out.
 
Other than that I thought of changing perspective when moving it out of plane, but can't quite make that work out to a square.  Requires some more thought.
IP Logged
Chronos
Full Member
***





   
WWW Email

Gender: male
Posts: 288
Re: Some more match riddles  
« Reply #9 on: Feb 3rd, 2003, 4:24pm »
Quote Quote Modify Modify

Good one, RexJacobus, but I'm not sure it really belongs in the same thread as all of these others.
 
Incidentally, I just managed to get three physicists to stare at a square drawn on the board for five minutes.  Fun stuff.
IP Logged
Brett Danaher
Guest

Email

Re: Match Equations  
« Reply #10 on: Feb 5th, 2003, 10:06am »
Quote Quote Modify Modify Remove Remove

I got the equation problems above, but the square made of matchsticks, changed into a different square just by moving one stick....
 
In any convential sense that is not possible, since once you have three parts of a square the final part has only one possible location.  
 
So I must not be thinking creatively enough, although I did try thinking in three dimensions.  Any clues or answers from the peanut gallery here?  Did the physicists get it or did they just decide after 5 minutes of trying that it was not as important as proving the Copenhagen interpretation of reality?
IP Logged
poseur
Guest

Email

Re: Match Equations  
« Reply #11 on: Feb 5th, 2003, 11:12am »
Quote Quote Modify Modify Remove Remove

Think algebra, not geometry.
IP Logged
Brett Danaher
Guest

Email

Re: Match Equations  
« Reply #12 on: Feb 5th, 2003, 11:44am »
Quote Quote Modify Modify Remove Remove

I'm an idiot.  I can't believe I did not see that.  Thanks for the help, though.  
 
 
Not that this post will add any value, but since when has that stopped any of us?
IP Logged
Pietro K.C.
Full Member
***





115936899 115936899    
WWW

Gender: male
Posts: 213
Re: Match Equations  
« Reply #13 on: Feb 5th, 2003, 12:10pm »
Quote Quote Modify Modify

Since no one posted this particular one-match solution to
 
3. VI + I = III,
 
here's an alternative:

  _
VI + I = II
IP Logged

"I always wondered about the meaning of life. So I looked it up in the dictionary under 'L' and there it was --- the meaning of life. It was not what I expected." (Dogbert)
BNC
Uberpuzzler
*****





   


Gender: male
Posts: 1732
Re: Match Equations  
« Reply #14 on: Feb 5th, 2003, 12:17pm »
Quote Quote Modify Modify

on Feb 5th, 2003, 12:10pm, Pietro K.C. wrote:
Since no one posted this particular one-match solution to
 
3. VI + I = III,
 
here's an alternative:
<removed>
[/color]

 
That is what I had in mind.
IP Logged

How about supercalifragilisticexpialidociouspuzzler [Towr, 2007]
wowbagger
Uberpuzzler
*****





242002184 242002184    


Gender: male
Posts: 727
Re: Match Equations  
« Reply #15 on: Feb 6th, 2003, 2:06am »
Quote Quote Modify Modify

on Feb 5th, 2003, 12:10pm, Pietro K.C. wrote:
<the intended solution>

Ouch! It took me over five minutes to figure out why it works! Tongue
Oh well, I'll blame it on Pietro's artistic abilities. Wink
 
on Feb 5th, 2003, 11:44am, Brett Danaher wrote:
Not that this post will add any value, but since when has that stopped any of us?

ditto
IP Logged

"You're a jerk, <your surname>!"
Pietro K.C.
Full Member
***





115936899 115936899    
WWW

Gender: male
Posts: 213
Re: Match Equations  
« Reply #16 on: Feb 6th, 2003, 2:34pm »
Quote Quote Modify Modify

You guys should have seen the performance a few of my friends gave when trying to solve a similar match puzzle. It was something like
 
VI = II,
 
the intended solution of which is (don't look if you don't want a hint for #3):
  _
VI = I

 
They came up with:
 
* VI != I
* I VI = I (where V is a sort of X for multiplication)
* IVI = I
* /I = III
* my friend's girlfriend tried taking a I from the II and making a gradient sign out of the V, so VI would become "gradient of 1", but couldn't find a convincing explanation of how I would represent the null vector Smiley
IP Logged

"I always wondered about the meaning of life. So I looked it up in the dictionary under 'L' and there it was --- the meaning of life. It was not what I expected." (Dogbert)
BehemothCat
Newbie
*





   


Posts: 3
Re: Match Equations  
« Reply #17 on: Apr 30th, 2003, 11:37am »
Quote Quote Modify Modify

Another basic solution is
 
1. IV + I = V
 
 
« Last Edit: Apr 30th, 2003, 11:55am by BehemothCat » IP Logged
Kitty
Full Member
***





   


Gender: female
Posts: 287
Re: Match Equations  
« Reply #18 on: Apr 30th, 2003, 11:53am »
Quote Quote Modify Modify

To hide you answers:  
 
[ hide ]    [/ hide ]
 
Without the spaces. You better do it or Icarus will give the lecture about it  Grin
IP Logged

If the human brain was simple enough for us to understand, we would still be so stupid that we couldn't understand it.~Kant (1724-1804)
Icarus
wu::riddles Moderator
Uberpuzzler
*****



Boldly going where even angels fear to tread.

   


Gender: male
Posts: 4863
Re: Match Equations  
« Reply #19 on: Apr 30th, 2003, 4:00pm »
Quote Quote Modify Modify

I don't tell 'em to hide, just HOW to do it! (And point them to the FAQ forum so they can find answers to other questions.)
IP Logged

"Pi goes on and on and on ...
And e is just as cursed.
I wonder: Which is larger
When their digits are reversed? " - Anonymous
mistysakura
Junior Member
**





   


Gender: female
Posts: 121
|Re: Match Equations  
« Reply #20 on: May 1st, 2003, 12:59am »
Quote Quote Modify Modify

Four matches different square (this is definitely not the intended solution)
  _
\| |  and imagine the leftmost three matches are a square root sign.  sq. root of 1 = 1, which is a perfect square.
IP Logged
Da_Stoph
Newbie
*





    SportMania
Email

Gender: male
Posts: 5
Re: Match Equations  
« Reply #21 on: Jul 5th, 2003, 10:46pm »
Quote Quote Modify Modify

im not sure if anyone said this yet, hoqever it doesnt appear that they have. the question merely asks for valid equations so you could simply take one stick in each problem and put it over the equal sign diagonally thus making it not equal. i dont know how to show that here in the post but im sure u all know what im talking about. it may seem like cheating but the question only says valid answers. PeAcE
IP Logged
BNC
Uberpuzzler
*****





   


Gender: male
Posts: 1732
Re: Match Equations  
« Reply #22 on: Jul 6th, 2003, 4:25am »
Quote Quote Modify Modify

on Jul 5th, 2003, 10:46pm, Da_Stoph wrote:
im not sure if anyone said this yet, hoqever it doesnt appear that they have. the question merely asks for valid equations so you could simply take one stick in each problem and put it over the equal sign diagonally thus making it not equal. i dont know how to show that here in the post but im sure u all know what im talking about. it may seem like cheating but the question only says valid answers. PeAcE

 
Look at posts 6,7 in this thread.
IP Logged

How about supercalifragilisticexpialidociouspuzzler [Towr, 2007]
Pages: 1  Reply Reply Notify of replies Notify of replies Send Topic Send Topic Print Print

« Previous topic | Next topic »

Powered by YaBB 1 Gold - SP 1.4!
Forum software copyright 2000-2004 Yet another Bulletin Board