Divide 3 groups first.
- ]% f& G7 z! ]' A2 X! W5 q( G公仔箱論壇i.e. 4 x 4 x 4.
- ]# M1 p7 E! v; S/ }' s3 j$ B5.39.217.76Weight any 2 groups [1st]
j/ L. a" B. gthen you will know the heavier ball in which group.
4 ^+ x/ I& O, W, i$ e( V" }Weight any 2 balls in that group [2nd]
o) E! h6 Y% R3 D+ S7 ctvb now,tvbnow,bttvbthen you will know the heavier ball in which 2 balls.
$ x4 o/ }9 U4 T" J# G公仔箱論壇Repeat again in remainders [3rd]5.39.217.76& ]( C# l# a% ~4 X; Z6 }& K. l
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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