Divide the 12 balls into 4 groups of 3's. * i+ L8 D; P" |9 F7 f+ B$ k5.39.217.77Weigh group 1 & 2 1 @* I+ `" m& U- e公仔箱論壇then weigh group 2 & 35.39.217.77) V* B& z+ H1 k2 [0 L3 B
If the results are Equal & Equal, it means the ball with the different weight is in group 4.! d! S4 A1 c& r, V. u3 H
If the results are Equal & Unequal, it means the ball is in group 3.5.39.217.773 Z2 J+ V+ l- B, H9 ~/ X9 I
If the results are Unequal & Equal, it means the ball is in group 1. 7 q" @0 ? D) A f+ n5 j7 ?8 _公仔箱論壇If the results are Unequal & Unequal, it means the ball is in group 2. 0 d S$ Y) R1 `. L& DTVBNOW 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。5.39.217.773 S! M: c- k& ^/ P
Once you determine the group that contains the ball.5.39.217.77' o, l9 _$ a5 f0 b5 n
Simply weigh two of the balls
發表於 2007-11-15 03:54 PM
| 
