Divide 3 groups first.os.tvboxnow.com/ x6 j" c" X1 t3 H2 s" I
i.e. 4 x 4 x 4.( H; s& v$ G6 |/ k7 F
Weight any 2 groups [1st]tvb now,tvbnow,bttvb$ @/ k9 _$ `8 I
then you will know the heavier ball in which group.
* Y" j. b/ k& c' Z; [# Cos.tvboxnow.comWeight any 2 balls in that group [2nd], t" c5 y7 R; t# {: k$ }
then you will know the heavier ball in which 2 balls.
1 `1 O! P9 c/ B, i* N" k5 _7 IRepeat again in remainders [3rd]
1 F J3 K- _, k2 F, gGot the heavier ball. |
發表於 2009-7-2 12:48 PM
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