Divide 3 groups first.
& U7 r- A3 E7 C+ o1 Itvb now,tvbnow,bttvbi.e. 4 x 4 x 4.tvb now,tvbnow,bttvb0 P, v* X6 k7 n: M
Weight any 2 groups [1st]( n! G$ U2 E6 }9 V! [1 o
then you will know the heavier ball in which group.
5 g8 }/ E1 G# B3 g0 J( Oos.tvboxnow.comWeight any 2 balls in that group [2nd]
% l& j3 h* N3 Y% E) Ctvb now,tvbnow,bttvbthen you will know the heavier ball in which 2 balls.公仔箱論壇% |/ N/ x% G4 U+ F4 ^
Repeat again in remainders [3rd], Y" B( S* g8 G% l8 a- V. e
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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