Divide the 12 balls into 4 groups of 3's. 4 f/ s' L. u5 n* O4 C* G9 mWeigh group 1 & 2tvb now,tvbnow,bttvb" @! Q5 ?& L! W w
then weigh group 2 & 3os.tvboxnow.com% u |+ g- t- F) x3 k( u3 K
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。$ G1 B! c' [8 B' v* W
If the results are Equal & Unequal, it means the ball is in group 3. 1 U6 Y% x. V2 ?7 L5 T; ^% i0 {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。If the results are Unequal & Equal, it means the ball is in group 1.tvb now,tvbnow,bttvb' r6 c0 \3 g+ l+ H3 x8 V1 y( h
If the results are Unequal & Unequal, it means the ball is in group 2. $ M! q) t5 ^! k- QTVBNOW 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。7 D4 n# K) c' S% L
Once you determine the group that contains the ball.公仔箱論壇3 Q) ~1 w9 V q, @ w5 y
Simply weigh two of the balls