divde the 12 balls into 3 sets of 4. 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。9 ~ E! f7 d: {1 f! E7 @1 p' l
weight any 2 sets.; ]& O$ V6 N- M! v/ F& Y. G0 T
if the 2 sets are equal, then you know the heavy one is in the third [) W8 l* q9 m
if one of the 2 is heavier, then the heavy one is in that set
, ?) J, a( ^9 ltvb now,tvbnow,bttvbthen divide the 4 balls into 2.公仔箱論壇8 ~# [. e" s) V! l# O2 Z
weigh them
% } k3 y$ Y* ^4 j8 G( U7 Q& B" Ftvb now,tvbnow,bttvband divide the heavier into 1tvb now,tvbnow,bttvb6 d M( E9 J f( w2 G1 f9 b) Q
and weight them.
+ Q) k" M( y& q& {& F. o ?, jTVBNOW 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. tvb now,tvbnow,bttvb& p+ P( H7 l# a* r0 _# ~6 o9 e
in less than 15 secs. |