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A Keg of Wine (Posted on 2004-07-14) Difficulty: 3 of 5
A man had a 10-gallon keg full of wine, and an empty jug. On Monday he drew off a jugful of wine and filled up the keg with water. On Friday, after the wine and water had been thorougly mixed, he drew off another jugful and again filled up the keg with water. The keg then contained equal quantities of wine and water.

What was the capacity of the jug?

See The Solution Submitted by Brian Smith    
Rating: 3.0000 (5 votes)

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re(2): the CORRECT solution | Comment 10 of 27 |
(In reply to re: the CORRECT solution by rixar)

thinking...

Edited on July 14, 2004, 9:32 pm

The simple answer of (1-j/10)^2=50% => j = 2.929 gallon is correct. I just can't see why my original (overly complicated) method is wrong :-/

Edited on July 14, 2004, 10:32 pm
  Posted by David on 2004-07-14 21:19:08

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