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1.
solved | September 20, 2006 at 7:15 pm
six balls on each side, take the heavier
thres balls on each side, take the heavier
weigh 2 of the last 3, take the heavier
if they are even, the non-weighed on is different
2.
Akhil Bansal | September 21, 2006 at 4:31 am
This is not so easy.
We don’t know about the odd ball, it may be heavier or lighter.
Try to solve it again…Good luck
3.
PWright | November 4, 2006 at 4:31 am
The answer is correct. Your question asked how to determine which was the odd ball, it did not ask to determine if the odd one was lighter or heavier.
4.
em | November 23, 2006 at 2:18 am
The answer is wrong. six balls on each side, take the heavier
three balls on each side. take the heavier. what if the odd ball is in the lighter pile. get the error
good luck.
5.
fatih | November 24, 2006 at 10:22 am
http://www.curiouser.co.uk/puzzles/12balls.htm
6.
fatih | November 24, 2006 at 10:24 am
first result of the google search for “12 Balls Problem”:
http://www.curiouser.co.uk/puzzles/12balls.htm