Divide the 12 balls into 4 groups of 3's.
1 a9 j; E$ {; r0 C- Z4 _9 V# `TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。Weigh group 1 & 2
- m# m* G2 T0 Vtvb now,tvbnow,bttvbthen weigh group 2 & 3
6 A* u7 d A- e7 [9 _tvb now,tvbnow,bttvbIf the results are Equal & Equal, it means the ball with the different weight is in group 4.; x* U- K2 n/ W( w: \& r: {- t
If the results are Equal & Unequal, it means the ball is in group 3.2 D& c6 B X K, M
If the results are Unequal & Equal, it means the ball is in group 1.
+ k+ B1 z$ g; }* \# T, e; J公仔箱論壇If the results are Unequal & Unequal, it means the ball is in group 2.tvb now,tvbnow,bttvb1 N" w" L! G( j: N7 B% r
tvb now,tvbnow,bttvb8 B5 u5 `, \. q+ ]2 ?; b9 [4 w
Once you determine the group that contains the ball.
1 x. X% t4 ^0 E2 l$ gSimply weigh two of the balls |