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Matchstick Equation


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60 replies to this topic

#31 iptrace

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Posted 22 October 2007 - 08:27 PM

First post on this website that I actually agree with. Thank you mystikarts, I thought I was the crazy one...

OMG. I totally hate this site. Every day its something new that doesn't make any sense. Why don't you guys come up with some real brain teasers or copy some from a book or something. This is retarded. It does not equal pi. Thats as good as saying:

XXII
------ = III because we'll just round that one down pretty hard core to make it work
VII

or

XXII
---- = II because were just gonna truncate that .75 so that this works.
VIII

this is dumb; we cant just go ahead and round down or truncate whenever we feel like it just to make a sorry attempt at a brain teaser. Common, just try a little bit. Just a little.


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#32 spamoid9

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Posted 05 November 2007 - 11:02 AM

To be anal, I must point out that this only works to two digits of Pi. As soon as you hit 3 digits, the answer is wrong.

22 / 7 ~=
3.1428571428571428571428571428571

Pi ~=
3.1415926535897932384626433832795




He put that the answer is only correct to two decimal places.
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#33 ashishkapoor2000

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Posted 26 November 2007 - 11:50 AM

I think this can be done like this also. That is 14/7=2

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#34 stupidjassi

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Posted 04 December 2007 - 04:11 PM

I have solution

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#35 swatizen

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Posted 06 December 2007 - 11:10 AM

X X + I I / V I = I I

GOTCHA !!
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#36 ArcaneGel

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Posted 14 December 2007 - 07:09 PM

I like swatizen's. How about this one?

solution.gif[/attachment:001ce]
**A couple of artistic liberties: ignore that the division line is under the "1", and assume that the changed stick can be broken in half. Remember that division occurs before subtraction. So you have 21/7 - 1 = 2.

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#37 I_like_chocolate

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Posted 31 January 2008 - 02:01 AM

you're all doing it wrong! notice that if you assume they are roman numerals, then simply take one matchstick from the top and add it to the bottom, making another "v". Then the equation is 22/11, which does equal 2.
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#38 dctrpangloss

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Posted 12 February 2008 - 07:08 PM

Cross the ones in the denominoator to make fifteen with the numerator ten times three and the solution is two (matchsticks).
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#39 dipti

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Posted 15 February 2008 - 02:46 AM

Matchstick Equation - Back to the Matchstick Puzzles
Move one matchstick to get the correct equation.

Edit: the answer is correct only to 2 decimal digits (since equals sign has to be kept).



Spoiler for Solution



Very simple....remove the last line from XX||| (i.e 23) & it will be XX|| (i.e 22). Place it the other side on top of the 2 lines & it will be pie(symbolically) i.e 22/7
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#40 geniusman

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Posted 24 February 2008 - 03:32 AM

How about a non-equal sign?

that is the way i thought of it also. :)
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