[ubuntu-mono] [Bug 774142] Re: logic error in a logic puzzle

[Olaf Seibert]

On Sat 30 Apr 2011 at 17:02:26 -0000, Jordi Mas wrote:
> > It is not grammatical. "Three times <what> older than his son"?
> > You can be "5 years older than his son", but "three times" is not some
> > quantity, it is simply incomplete.
> 
> If you have a number X, 3 times that number is 3x.

Yes. Please write that.

> It is not incomplete, depends on another variable.

"depends on" is the same as "incomplete".

> >The only thing it could mean, if it meant anything, is that the son is y
> >years old, and the father is "3 times y" years older, making him y + 3 y =
> >4 y years old.
> 
> If he soon is represented by the variable Y, "times older than his son"
> means 3Y, not 3+Y

I did not write "3+Y", I wrote "Y + 3 * Y" which is "4 * Y".
This is basic math. I would hope that "logic puzzles" were based on
logic (in fact, "math" would be more appropriate here).

Cheers,
-Olaf.
-- 
___ Olaf 'Rhialto' Seibert  -- There's no point being grown-up if you 
\X/ rhialto/at/xs4all.nl    -- can't be childish sometimes. -The 4th Doctor
X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*

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https://bugs.launchpad.net/bugs/774142

Title:
  logic error in a logic puzzle

Status in “gbrainy” package in Ubuntu:
  New

Bug description:
  Binary package hint: gbrainy

  This bug seems related to bug #622197, but it is about the language which is in error.
  The text of the question is "Johnś age is nowadays 2 times his son's age. 12 years ago. John was 3 times older than his son."

  What is meant, apparently, is "John was 3 times AS OLD AS his son".
  "3 times older than" is nonsense, but as far as one absolutely wants to attach a meaning to it, it must be "4 times as old".

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: gbrainy 1.65-0ubuntu1
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  Architecture: i386
  Date: Sat Apr 30 14:10:57 2011
  LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gbrainy
  UpgradeStatus: No upgrade log present (probably fresh install)