Divide the 12 balls into 4 groups of 3's.: B( b" B; ]0 ]2 W' h
Weigh group 1 & 2 - H2 p- M- `5 h" t( x) C; lthen weigh group 2 & 3. H( s* E6 W2 o- B
If the results are Equal & Equal, it means the ball with the different weight is in group 4.* e. r0 a$ v7 L1 m8 j/ e) @
If the results are Equal & Unequal, it means the ball is in group 3. : o% r9 w4 J& JIf 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。9 l) N( e- G0 U' c. R1 j
If the results are Unequal & Unequal, it means the ball is in group 2.tvb now,tvbnow,bttvb6 Z x# O4 a/ {: W* b, x6 v) _
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Once you determine the group that contains the ball.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。# O$ f! n% v* h+ g5 @
Simply weigh two of the balls