divde the 12 balls into 3 sets of 4. 0 S5 T$ k4 U6 g. W6 [
weight any 2 sets.
$ }5 }. H: K* z) r; G: |/ D# S公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the third
# P" _! `- }5 f' Xif one of the 2 is heavier, then the heavy one is in that settvb now,tvbnow,bttvb8 }& B% e, [+ C$ V
then divide the 4 balls into 2.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。) `5 y" @4 ^7 p. G
weigh themwww2.tvboxnow.com% [8 u. u1 t4 d: }+ A
and divide the heavier into 1TVBNOW 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。- b8 V" w% T' h
and weight them.公仔箱論壇7 Q0 _6 E4 V# d. U7 |
3 x weighing and get the ans.
) Z5 p! r1 |0 ]+ R+ N; htvb now,tvbnow,bttvbin less than 15 secs. |