Divide the 12 balls into 4 groups of 3's. 3 Y* R2 K/ h$ `/ N- g5 }+ Gtvb now,tvbnow,bttvbWeigh group 1 & 2公仔箱論壇 G0 u; R- W8 y8 r: o
then weigh group 2 & 36 H) g! B, X6 ^* t6 |- k0 [
If the results are Equal & Equal, it means the ball with the different weight is in group 4.公仔箱論壇% Q( I7 Z8 ]. ^, }) Q4 j5 w
If the results are Equal & Unequal, it means the ball is in group 3. 2 S& d' U0 W, Q. r9 C R- u7 iTVBNOW 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.! b; X J0 x5 o- g/ U& C2 H
If the results are Unequal & Unequal, it means the ball is in group 2. - f! v$ c3 l, G/ O' Q5.39.217.772 h8 `+ k" u1 R a
Once you determine the group that contains the ball. 5 X9 r) S- j* ^% USimply weigh two of the balls