Divide the 12 balls into 4 groups of 3's. 3 J% J; q# f6 F5.39.217.77Weigh group 1 & 25.39.217.774 i+ V& m/ h! k2 O$ w
then weigh group 2 & 3 7 a1 T7 e5 |4 v" ^+ CIf the results are Equal & Equal, it means the ball with the different weight is in group 4. ( i0 I5 N6 m5 a# R) zTVBNOW 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 & Unequal, it means the ball is in group 3.tvb now,tvbnow,bttvb! c* h2 c$ N9 U/ h( P. v* Q
If the results are Unequal & Equal, it means the ball is in group 1.5.39.217.77; |2 ?6 G; C( i; u. k1 ]# f" H7 \
If the results are Unequal & Unequal, it means the ball is in group 2.5.39.217.77' h A; w z5 w
' i+ a ]2 ^& q C: IOnce you determine the group that contains the ball.% G$ k* u8 r, d! K. Z
Simply weigh two of the balls