divde the 12 balls into 3 sets of 4. ) h. X, A1 G4 u
weight any 2 sets.4 {7 d5 b; D8 R7 c- u8 d
if the 2 sets are equal, then you know the heavy one is in the third( ~. F# i* G6 w$ G% R/ J
if 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。3 Y' Z5 F3 B7 Y0 E
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。; t% e- ]% ~7 {$ [4 ]7 o- z
weigh them
$ U* ]1 H9 k; i- Q. vTVBNOW 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。and divide the heavier into 1tvb now,tvbnow,bttvb5 R, P2 t' l6 K: E) }( ^
and weight them.
; @0 B" \+ m/ b8 L/ `8 C' h/ q4 ]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。3 x weighing and get the ans.
2 Y, \0 T; j9 l/ M+ nin less than 15 secs. |