Divide the 12 balls into 4 groups of 3's.公仔箱論壇5 u' Z1 g2 a3 q/ v( p' t
Weigh group 1 & 2tvb now,tvbnow,bttvb/ N0 Y3 b! r+ |* a5 j
then weigh group 2 & 3
9 K3 C I6 l7 I, D8 A' r: lIf the results are Equal & Equal, it means the ball with the different weight is in group 4.5.39.217.77:8898! P3 O, I: I8 i7 P6 d
If the results are Equal & Unequal, it means the ball is in group 3.5.39.217.77:88981 e- H7 s$ s: M' u6 X" {) n
If the results are Unequal & Equal, it means the ball is in group 1.
: ]9 k+ g ^, G% r) K: v6 F( X公仔箱論壇If the results are Unequal & Unequal, it means the ball is in group 2.
( J5 T4 l' T/ P8 y. L公仔箱論壇5.39.217.77:88987 ~ L( C0 ^, X0 I3 S
Once you determine the group that contains the ball.tvb now,tvbnow,bttvb+ _+ c5 T; S/ J/ K; ~: K' Q
Simply weigh two of the balls |