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[Jordi Mas <jmas@xxxxxxxxxxxxxx>]

> 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.

It is not incomplete, depends on another variable.

>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

Regards,

Jordi,

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

Title:
  logic error in a logic puzzle