Divide the 12 balls into 4 groups of 3's.公仔箱論壇- ^8 F7 `! ~) U: z: W
Weigh group 1 & 2( s5 G7 { ?, C6 G! j1 Z$ l
then weigh group 2 & 3 ! c$ Z! [: M' d6 _: L! A: OTVBNOW 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 Equal & Equal, it means the ball with the different weight is in group 4.公仔箱論壇) M2 P# i5 M) i" A2 H: j$ \! D+ a
If the results are Equal & Unequal, it means the ball is in group 3. : e0 Q; H5 u1 x) z( q- Q5 Stvb now,tvbnow,bttvbIf the results are Unequal & Equal, it means the ball is in group 1.% \" b: ^% R% j* e
If the results are Unequal & Unequal, it means the ball is in group 2. 3 V+ O [ V, s* L公仔箱論壇 $ ]& m9 i% _; qOnce you determine the group that contains the ball.5.39.217.76% x3 L3 A& o9 w4 q
Simply weigh two of the balls