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Cows (Posted on 2002-05-06) Difficulty: 2 of 5
A few weeks ago a farmer died. And the will he left behind... fortunately his three sons had had a good education. His will was as follows:
  • The first son would get 1/2 of the cows,
  • The second son would get 1/3 of the cows and
  • The third son would get 1/9 of the cows.
At first, everything seems fine. But unfortunately, the farmer had 17 cows. And pieces of cows weren't any good to the sons.

But, since the sons had a good education, they came up with a solution. They lent a cow from the neighbour. Why? Then they had 18:

  • 18 * 1/2 = 9 for the 1st son,
  • 18 * 1/3 = 6 for the second son and
  • 18 * 1/9 = 2 for the third son.
'But what about the neighbour,' you may say. Well, since 9 + 6 + 2 is 17, the cow that was left over went back to the neighbour.

What do you think about the sons' education?

See The Solution Submitted by charl    
Rating: 3.2222 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution | Comment 9 of 10 |
Since 17 as a basis cannnot be distrubuted in these proportions - the adding a non-distributed 18th one to the basis results in an even allocation of the 17 cows - but "gives an added proportion to each of the sons with this new basis.

1st son gets "1/2 or .500" additional cow.
2nd one gets an additional "1/3 or .333" cow.
3rd gets an additional "1/9 or .111" cow.

The comprise the effective allocation of the "odd" cow, in same proportion of father's original intent.
  Posted by Charles Archibals on 2007-01-18 13:00:47
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