2 + 2 = 5 ( Silly puzzle of the Day) [SOLUTION ADDED]

Raj Lal

Where o where ? Nish, i hope you haven't given up on silly puzzles :) -- modified at 19:06 Friday 26th January, 2007

Omit Needless Words - Strunk, William, Jr.

Josh Smith

PIEBALDconsult wrote:

If this is from a book, please post the full, complete, exact text of the puzzle. Plus attribution would help.

Perhaps the International Puzzle and Gaming Committee should ratify the puzzle, too? :rolleyes:

:josh: My WPF Blog[^]
We are what we repeatedly do. Excellence then, is not an act, but a habit. - Aristotle

Raj Lal

Josh Smith wrote:

This sounds like the first chapter to "The Introverts Guide to the Hokey Pokey[^]."

Does it ! i have never read that, :laugh::laugh::laugh:

Omit Needless Words - Strunk, William, Jr.

PIEBALDconsult

Quartz... wrote:

1. The context is the first question or the second question ?

Oh, yeah, sorry, the second first... the puzzle. I don't find the first second very interesting.

Quartz... wrote:

2. You mean the puzzle is not clear ? Can you help make it clear because thes are not from any book or text, i read that long back and thought to share

Ah, so you may have left out bits you thought non-essential? Not to get down on you in particular, but any who post puzzles on the Web in general. Plus, many times a puzzle is posted because the poster didn't find the answer, and if that's because he didn't understand the puzzle, then quite likely the resultant post will be garbled and unsolvable. As has been seen on here before. At any rate, of the solutions I've seen posted here so far only ceil(sqrt(22)) seems to qualify as a "proper" answer. The answers 5+5+1 and 2+2+2/2 don't qualify, because they break the implied limitation. If you then say "I never implied that", then the puzzle is no longer interesting, because many many solutions are then possible and a puzzle should have one or very few solutions. How about, "I am one with two plus two, that makes five"? Or, "two plus two and a banana makes five"? When I read a puzzle like that (poorly-worded) on the Web I can only assume that the poster left out such details in the interest of brevity, or not realizing the scope of the error, or because he's smoked too much weed. -- modified at 19:51 Friday 26th January, 2007

Raj Lal

i don't think a lot of people here agrees to that, because the question is very simple , just one line and there is no scope of misunderstanding it. i added a bit of confusion to make it difficult to understand on the first place and there is only one MATHEMATICAL ACCURATE solution to it. and i do have the solution to it

PIEBALDconsult wrote:

When I read a puzzle like that (poorly-worded) on the Web I can only assume that the poster left out such details in the interest of brevity, or not realizing the scope of the error, or because he's smoked too much weed.

Very interesting interpretation though

Omit Needless Words - Strunk, William, Jr.

PIEBALDconsult

Quartz... wrote:

question is very simple

There are no simple questions, only simple questioners. Well, maybe I've seen too many bad puzzles posted, I'll go read it again.

PIEBALDconsult

OK, I reread it again. If indeed

Quartz... wrote:

the question is very simple , just one line and there is no scope of misunderstanding it

and the only question there is Can a "mathematician in you" also do this ? then, my answer is, "Yes". But that doesn't satisfy

Quartz... wrote:

there is only one MATHEMATICAL ACCURATE solution to it

So, perhaps the answer you seek is, "No". At any rate, ask the question without

Quartz... wrote:

added a bit of confusion to make it difficult to understand on the first place

because otherwise I must assume you've smoked too much weed.

szukuro

Math.Round(Math.Tanh(2) + Math.Sinh(2)) is 5 :)

Raj Lal

Ist one sqrt( (.2) ^ (-2) ) [^] i can hear your "huh!" 2nd one as some of you have already guessed the mirror just reflect and our eye see the image horizontally . The reason why it appears to reverse left/right is because of the symmetry of our body. nice weekend

Omit Needless Words - Strunk, William, Jr.

Raj Lal

Solution here[^]

Omit Needless Words - Strunk, William, Jr.

Raj Lal

Solution here[^]

Omit Needless Words - Strunk, William, Jr.

Raj Lal

Solution here[^]

Omit Needless Words - Strunk, William, Jr.

Raj Lal

Solution here[^]

Omit Needless Words - Strunk, William, Jr.

Raj Lal

Solution here[^]

Omit Needless Words - Strunk, William, Jr.

Raj Lal

i haven't checked that but seems to be a good solution if it is accurate Solution here[^]

Omit Needless Words - Strunk, William, Jr.

Raj Lal

Solution here[^]

Omit Needless Words - Strunk, William, Jr.

DavidNohejl

Quartz... wrote:

TAKE two 2's and any number of mathematical operations AND make it EQUAL TO 5

:zzz: log4^(1/5)(2+2) = 5 :cool: or, I think you could define group with only {2}, and call zero element "5". Then 2-2 = 5 :D

"Throughout human history, we have been dependent on machines to survive. Fate, it seems, is not without a sense of irony. " - Morpheus

Rob Graham

Quartz... wrote:

The reason why it appears to reverse left/right is because of the symmetry of our body.

Symmetry has nothing to do with it. Perspective has everything to do with it.

Ed Poore

Um, where's the +? Besides what's so strange about that one? .2 = 1/5 (1/5)^(-2) = 5^2 sqrt(25)=5 The one I was on about is where there's a proof that 1=2.

I have no idea what I just said. But my intentions were sincere.

Poore Design

parths

int x = 2; (++x)+2 ... on some compilers :)

"It was when I found out I could make mistakes that I knew I was on to something." -Ornette Coleman "Philosophy is a study that lets us be unhappy more intelligently." -Anon.