Divide the 12 balls into 4 groups of 3's. $ D$ q1 u5 t9 @/ t* B# J! `* C) tWeigh group 1 & 2 ' z1 X! l: r+ m/ p/ \+ ATVBNOW 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。then weigh group 2 & 3公仔箱論壇% [/ g+ t9 j- n* P# P4 o4 W4 d3 ^
If the results are Equal & Equal, it means the ball with the different weight is in group 4.tvb now,tvbnow,bttvb& k# T1 r2 y% F
If the results are Equal & Unequal, it means the ball is in group 3. ! n" g2 Q( w1 o( p! ?公仔箱論壇If the results are Unequal & Equal, it means the ball is in group 1.公仔箱論壇5 |# H0 g# x8 L3 R3 E3 F' ^
If the results are Unequal & Unequal, it means the ball is in group 2.5.39.217.77:8898. M# ?( W& d9 l" a. m
( ^" X; ~/ d9 x6 [" e4 D0 rOnce you determine the group that contains the ball. . N( a1 q% E0 Gtvb now,tvbnow,bttvbSimply weigh two of the balls