Divide the 12 balls into 4 groups of 3's. ' W/ f+ k3 s0 j- g2 g' f* W: |; nWeigh group 1 & 2 9 B4 ]" s- Y" X/ r6 C3 }www2.tvboxnow.comthen weigh group 2 & 3 u; c" E4 p: s9 c& V) F公仔箱論壇If 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。5 O( J( O6 G" q. s. l
If the results are Equal & Unequal, it means the ball is in group 3.. |) i: U! H$ m( W( o' e
If the results are Unequal & Equal, it means the ball is in group 1.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。3 H% S' g1 Z9 b
If the results are Unequal & Unequal, it means the ball is in group 2. + ]+ x( I9 ]: M6 N8 U4 y1 Ftvb now,tvbnow,bttvb - a% `/ y/ L7 i$ C9 y# I) w7 Uwww2.tvboxnow.comOnce you determine the group that contains the ball.4 E' C2 L, w# ?; T6 \
Simply weigh two of the balls