Sixteen five gallon containers form a 4x4 grid. Move only ONE container so as to make the row sums, column sums, and main diagonal sums, the same.

[1] [2] [3] [2]
[2] [2] [3] [1]
[3] [1] [2] [4]
[2] [4] [5] [3]

The posted solutions don't work -- how do you measure out one or two gallons?

Posted by Old Original Oskar! on 2005-03-20 13:55:44