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## #1 2009-07-20 13:21:17

uzurpatorul
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### Diaphatus

Diophantus, the Greek mathematician known as the "Father of Algebra", supposedly had the following inscribed on his tombstone:
"Diophantus passed 1/6th of his life in childhood, 1/12th in youth, and 1/7th more as a bachelor.
Five years after his marriage, there was born a son who died four years before his father, at half his father's age."

How old was Diophantus when he died?

## #2 2009-07-20 16:41:57

bobbym

Online

### Re: Diaphatus

Hi uzurpatorul;

Last edited by bobbym (2009-07-20 16:42:22)

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #3 2009-07-21 22:04:25

phrontister
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### Re: Diaphatus

That was a nice puzzle, uzurpatorul!

It took a bit of head-scratching before I could find an algebraic solution, but I finally got there.

Last edited by phrontister (2009-07-22 02:42:35)

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #4 2013-06-10 11:08:29

guin
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### Re: Diaphatus

I'm getting stuck on finding an LCD...should it be 28?

## #5 2013-06-10 15:29:12

bobbym

Online

### Re: Diaphatus

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.