divde the 12 balls into 3 sets of 4.
; a* w5 n+ C9 p7 h+ S7 uTVBNOW 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。weight any 2 sets.
# v3 b/ c, E) g公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the third
4 X$ V$ S, _1 N$ ]$ p$ [/ z6 Ftvboxnow.comif one of the 2 is heavier, then the heavy one is in that set
$ M. K4 z* ~) Dtvb now,tvbnow,bttvbthen divide the 4 balls into 2.
7 ? B% N$ Z; Ttvboxnow.comweigh them
. v4 P% e/ U7 t3 L/ L% ?公仔箱論壇and divide the heavier into 1公仔箱論壇& v& @0 j, A, u& U
and weight them.tvboxnow.com8 l6 u% I" H3 }( k2 x+ x& }
3 x weighing and get the ans. ) Y; |. x# F; K! @, m
in less than 15 secs. |