divde the 12 balls into 3 sets of 4.
+ y9 B7 [- `( y& I" p ctvb now,tvbnow,bttvbweight any 2 sets.
* K$ }" [! }/ K9 d8 U# P( yTVBNOW 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。if the 2 sets are equal, then you know the heavy one is in the third3 W: L& u7 _( K3 `
if one of the 2 is heavier, then the heavy one is in that set
% S) N$ r! T3 o! Q! bthen divide the 4 balls into 2.
# u6 P( O, W! g% \4 STVBNOW 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。weigh them
- u. c. }) _# Q* N3 ~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。and divide the heavier into 1公仔箱論壇! C0 `7 i5 }- v; X% t F
and weight them.
) @0 |6 l& E& R, V M2 o, N" T. u/ Mtvb now,tvbnow,bttvb3 x weighing and get the ans. 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 j: ]3 q- W, E
in less than 15 secs. |