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#12223 - Tue Dec 21 1999 06:32 PM Match sticks as Roman Numerals
Paul624 Offline
Learning the ropes...

Registered: Tue Dec 21 1999
Posts: 4
Loc: Wrightsville, PA., USA
Using match sticks as roman numerals and moving just one stick
how can you solve this puzzle. VII - VI = VII.
I'm really stumped. Thanks

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#12224 - Tue Dec 21 1999 06:52 PM Re: Match sticks as Roman Numerals
sue943 Online   content

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Registered: Sun Dec 19 1999
Posts: 35213
Loc: Jersey Channel Islands        
VIII - I = VII

Sue

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#12225 - Tue Dec 21 1999 07:06 PM Re: Match sticks as Roman Numerals
Paul624 Offline
Learning the ropes...

Registered: Tue Dec 21 1999
Posts: 4
Loc: Wrightsville, PA., USA
Thanks Sue, but I don't think that's it. You moved two
sticks when you got rid of the other part of the V. Each V
would have two sticks.

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#12226 - Tue Dec 21 1999 07:08 PM Re: Match sticks as Roman Numerals
sue943 Online   content

Administrator

Registered: Sun Dec 19 1999
Posts: 35213
Loc: Jersey Channel Islands        
Sorry - I thought that you meant removing, not moving.

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#12227 - Tue Dec 21 1999 07:19 PM Re: Match sticks as Roman Numerals
JoJo2 Offline
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Registered: Fri Nov 19 1999
Posts: 17656
Loc: San Diego California USA 
Paul call me stupid but I don't understand is it
VII - VI = VII?

I'm not posting an answer here, I just want to make sure of the question.

[This message has been edited by JoJo2 (edited 12-21-1999).]


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#12228 - Tue Dec 21 1999 08:02 PM Re: Match sticks as Roman Numerals
Paul624 Offline
Learning the ropes...

Registered: Tue Dec 21 1999
Posts: 4
Loc: Wrightsville, PA., USA
JoJo2, you're not stupid at all. The equation is written correctly. The guy that gave it to me, my therapist-(knee)not mind, said I will really feel dopey when he shows me the answer. I go back to him tomorrow and was kind of hoping that someone smarter than I am would have an answer to it. Thanks for taking a look.

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#12229 - Tue Dec 21 1999 08:31 PM Re: Match sticks as Roman Numerals
JoJo2 Offline
Star Poster

Registered: Fri Nov 19 1999
Posts: 17656
Loc: San Diego California USA 
Paul, I understand now. I'm working on it. I'll get back to you

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#12230 - Tue Dec 21 1999 08:48 PM Re: Match sticks as Roman Numerals
JoJo2 Offline
Star Poster

Registered: Fri Nov 19 1999
Posts: 17656
Loc: San Diego California USA 
Hey TexasJoe or Gunslinger, we need your help on this one.

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#12231 - Tue Dec 21 1999 08:54 PM Re: Match sticks as Roman Numerals
JoJo2 Offline
Star Poster

Registered: Fri Nov 19 1999
Posts: 17656
Loc: San Diego California USA 
VII X 1 = VII?

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#12232 - Tue Dec 21 1999 09:45 PM Re: Match sticks as Roman Numerals
TexasJoe Offline
Multiloquent

Registered: Tue Oct 05 1999
Posts: 3171
Loc: Plano, Texas
Just a guess:

VII - VI = VII

VII - VV = III

Assuming negative results are okay.

TJ

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#12233 - Wed Dec 22 1999 05:37 AM Re: Match sticks as Roman Numerals
sue943 Online   content

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Registered: Sun Dec 19 1999
Posts: 35213
Loc: Jersey Channel Islands        
Another thought -

Move one matchstick from the first VII so that gives you VI.
Place the matchstick upright to the left of the V giving a sort of N, pronounce the next I as i, and the last I an l(L). You then have

VI - VI = Nil

Sue

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#12234 - Wed Dec 22 1999 05:40 AM Re: Match sticks as Roman Numerals
sue943 Online   content

Administrator

Registered: Sun Dec 19 1999
Posts: 35213
Loc: Jersey Channel Islands        
TJ - surely VV is written as X, or is that just a British thing?
;-))

[This message has been edited by sue943 (edited 12-22-1999).]

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#12235 - Wed Dec 22 1999 10:30 AM Re: Match sticks as Roman Numerals
TexasJoe Offline
Multiloquent

Registered: Tue Oct 05 1999
Posts: 3171
Loc: Plano, Texas
Yes, Sue IX XXXX III!

I pondered this with my boys when we first saw this, so I resorted to Roman Numerals 101:

Roman Numerals

Roman numerals are expressed by letters of the alphabet and are rarely used today except for formality or variety.

There are four basic principles for reading Roman numerals:

  1. A letter repeated once or twice repeats its value that many times (XXX = 30, CC = 200, etc.).

  2. One or more letters placed after another letter of greater value increases the greater value by the amount of the smaller (VI = 6, LXX = 70, MCC = 1200, etc.).

  3. A letter placed before another letter of greater value decreases the greater value by the amount of the smaller (IV = 4, XC = 90, CM = 900, etc.).

  4. A bar placed on top of a letter or string of letters increases the numeral's value by 1,000 times (XV = 15, XV = 15,000).

We decided that Rule 1 justifies the solution we submitted. The better versed Roman would no doubt use the X; however, it is not an error to repeat values!

Anyway, Paul VI II IV, thanks for the question! We enjoyed trying to solve it! Let Us know the answer form your therapist.

TJ

[This message has been edited by TexasJoe (edited 12-22-1999).]

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#12236 - Wed Dec 22 1999 02:36 PM Re: Match sticks as Roman Numerals
RedDevel Offline
Forum Adept

Registered: Thu Sep 30 1999
Posts: 119
Loc: Stamford CT USA
How about, if you move any of the single (I) match sticks across the equals signs, so it reads, is not equal to. Not real elegant, but it works!
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#12237 - Wed Dec 22 1999 10:28 PM Re: Match sticks as Roman Numerals
Paul624 Offline
Learning the ropes...

Registered: Tue Dec 21 1999
Posts: 4
Loc: Wrightsville, PA., USA
I should have studied math more and girls less.
The equation was: VII-VI=VII
The answer to this problem is:
You move the last match stick and place it over the next to last match stick to make it a square root sign.
VII-VI=VT That's not an abbreviation for Vermont.
Since I don't know how to make a square root sign. I've used a capital T for two match sticks. Seems the answer is the square root of 1, which, of course is one. If you use match sticks it looks a lot better than in type on the computer.
Thanks to all of you. I'm looking forward to watching this Community for some really good brain teasers. Maybe I can be of help to someone some time. Thanks again.

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#12238 - Tue Jul 11 2000 12:15 PM Re: Match sticks as Roman Numerals
Jimmy Of York Offline
Explorer

Registered: Sun Feb 27 2000
Posts: 63
Loc: I dunno where I am, and I don'...
VII - V (is not equal to sign) VII?
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