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OT A simple math puzzle - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: OT A simple math puzzle (/thread-113221.html) |
OT A simple math puzzle - Ken Ratkevich - 05-06-2007 The solution to this puzzle is probably very simple.
I will probably be embarrassed by how simple the solution actually is. Re: OT A simple math puzzle - Matt Kernal - 05-06-2007 On first glance, 15 seems about right (i.e. 36 minus 21 = 15 and 28 minus 15 = 13).
Edited: 6 May 2007, 12:27 p.m.
Re: OT A simple math puzzle - Chuck - 05-06-2007 How does the 21 - 13 give 7, then? Edited: 6 May 2007, 12:34 p.m.
Re: OT A simple math puzzle - Richard Ottosen - 05-06-2007 One solution is 12. I wonder if there are more solutions. :-)
Re: OT A simple math puzzle - Matt Kernal - 05-06-2007 Good catch. Obviously, I didn't take the time to finish the sequence :-) Good thing my answer was of the non-committal type, with generous use of "escape" language, such as, "On first glance.." and "seems about right..". Now I'm sounding like a politician :-) Matt
Re: OT A simple math puzzle - Ken Ratkevich - 05-06-2007 Hi, A simple math puzzle (SPOILER) - Gerson W. Barbosa - 05-06-2007 Ken,
Perhaps Richard just didn't want to spoil the fun: (9+9) + (7+2) = 27and so on... Regards, Gerson.
Edited: 6 May 2007, 6:34 p.m.
Re: A simple math puzzle (SPOILER) - Richard Ottosen - 05-06-2007 Ken: I used the same method to get the solution as Gerson. I summed the individual digits to get the next result. Puzzles like this one always make me wonder if there is more than one way to solve them since the rules are very open-ended. Thanks for the challenge.
Re: A simple math puzzle (SPOILER) - Gerson W. Barbosa - 05-06-2007
Quote: As a matter of fact, I didn't find the solution. You did. I just got curious and tried to discover how you had found it. If I didn't know the solution beforehand I would have probably voted for 15 and assumed the 21 at right was a typo :-) The following might be easy and has only one solution, to my knowledge:
____ ___ Gerson.
Re: A simple math puzzle (SPOILER) - Valentin Albillo - 05-07-2007 Yes, this one is very, very old: -----Best regards from V. Re: A simple math puzzle (SPOILER) - Ken Ratkevich - 05-07-2007 Oh, I see now! Re: A simple math puzzle (SPOILER) - Antonio Maschio (Italy) - 05-07-2007 Please, explain...
-- Antonio
Re: A simple math puzzle (SPOILER) - Valentin Albillo - 05-07-2007 Hi, Antonio:
"Please, explain..."
just the ASCII representation of the shape of the digits 1,2,3, and 4 with their mirror images prepended.
The next element thus is to be an ASCII representation of the Re: A simple math puzzle (SPOILER) - Antonio Maschio (Italy) - 05-07-2007 Off! I'm so dumb...
-- Antonio
Re: A simple math puzzle (SPOILER) - Gerson W. Barbosa - 05-07-2007 Actually this is not so easy, as we tend to see the symbols as letters: MVXMRoman numerals? :-) Gerson.
[OT & NT] - To Valentin: You've got mail :-) - PeterP - 05-07-2007 Thanks!! Cheers
Peter
Re: [OT & NT] - To Valentin: You've got mail :-) - Valentin Albillo - 05-07-2007 Hi, PeterP:
accounts but nothing there from you, unless you were telling me that a recently deceased relative has left me 6 million sterling pounds in his will and that I should send my bank account details for the transfer of the funds to be made. If that was the case, sorry but I decline the kind offer, I'm far too modest a person, as everyone knows, and wouldn't know what to do with that much money, it would spoil my healthy habits for sure.
Now seriously, did you remember to include the string "HP CALCS" in the
Thanks for whatever it was and Re: [OT & NT] - To Valentin: You've got mail :-) - PeterP - 05-07-2007 my mistake, really sorry. Forgot about the subject line. Mistake corrected. Thanks for the reminder! Cheers
Peter
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