Divide the 12 balls into 4 groups of 3's.: X3 q5 a1 E# z# U
Weigh group 1 & 2tvb now,tvbnow,bttvb$ }5 Z% A8 a! l. ~3 L$ f4 q" G! Q
then weigh group 2 & 3 ' \( e0 e$ Q( @9 F& a/ ? C0 ]' dtvb now,tvbnow,bttvbIf the results are Equal & Equal, it means the ball with the different weight is in group 4.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。( P: d# c" `9 t7 n, y
If the results are Equal & Unequal, it means the ball is in group 3. 2 k P I1 w" l; O+ k: j9 F+ aIf the results are Unequal & Equal, it means the ball is in group 1.www2.tvboxnow.com! B. i4 H: |/ Q3 y7 K
If the results are Unequal & Unequal, it means the ball is in group 2. - d# J! @( n8 C l" e& rTVBNOW 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。 2 Y3 Z1 N# \7 Y* q2 }Once you determine the group that contains the ball.! m5 ~3 N6 f$ [$ K0 _8 b
Simply weigh two of the balls