Divide 3 groups first.公仔箱論壇1 C+ m1 t8 Z1 u1 X; t. w
i.e. 4 x 4 x 4.tvb now,tvbnow,bttvb2 u k4 s+ `/ b/ f! W
Weight any 2 groups [1st]tvb now,tvbnow,bttvb& B; I4 E2 F0 {+ g( i0 d
then you will know the heavier ball in which group.
! s9 _/ `5 I1 ]) Awww1.tvboxnow.comWeight any 2 balls in that group [2nd]
2 \. C6 k3 F- H, U' a! lthen you will know the heavier ball in which 2 balls.tvb now,tvbnow,bttvb t; B! R: e: F( H) r' p
Repeat again in remainders [3rd]1 z* ^* d& a. K( ^
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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