divde the 12 balls into 3 sets of 4. tvb now,tvbnow,bttvb, w+ A1 A3 Q4 y F
weight any 2 sets.
5 A5 g$ S+ D0 H6 `if the 2 sets are equal, then you know the heavy one is in the third
6 _+ \% r3 L: }) c' Ltvb now,tvbnow,bttvbif one of the 2 is heavier, then the heavy one is in that setTVBNOW 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。1 r+ n6 R2 ]0 C3 S$ }
then divide the 4 balls into 2.
; A( f; C& N ]. a1 Q公仔箱論壇weigh them
; K- e4 W- b; q m( H/ Q6 S- J公仔箱論壇and divide the heavier into 1' R" W: `" J9 J: ~8 W8 v
and weight them.tvb now,tvbnow,bttvb, ?+ O0 R/ a- w
3 x weighing and get the ans.
$ s9 c- @7 P2 b' l# qTVBNOW 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。in less than 15 secs. |