Divide the 12 balls into 4 groups of 3's.
2 ]6 L; E1 H1 a5.39.217.76Weigh group 1 & 2
: i$ o: W8 I p6 t6 x& xtvb now,tvbnow,bttvbthen weigh group 2 & 3# _% I; e, i! K8 K1 c0 X9 h
If the results are Equal & Equal, it means the ball with the different weight is in group 4.
" \( S" r& Z' c: L- A$ j1 DIf the results are Equal & Unequal, it means the ball is in group 3.
1 P3 w, n. P2 ]If the results are Unequal & Equal, it means the ball is in group 1.
; N# B( N, [: B) j* C# F3 UIf the results are Unequal & Unequal, it means the ball is in group 2.
) r6 M. K- w2 y% lTVBNOW 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。
$ G- p6 U% v! sOnce you determine the group that contains the ball.tvb now,tvbnow,bttvb7 J$ ` F6 l$ E
Simply weigh two of the balls |