divde the 12 balls into 3 sets of 4.
* i' r8 i. Q% L" A" K3 E5.39.217.77:8898weight any 2 sets.
" ]$ k8 o7 _7 t7 otvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the thirdtvb now,tvbnow,bttvb: h9 N2 i! j. P& a0 l7 h# q
if one of the 2 is heavier, then the heavy one is in that set5.39.217.77:8898+ I8 @+ J: Z( Y) O$ I) E
then divide the 4 balls into 2.
( `. V6 d. p0 `2 Vweigh them公仔箱論壇2 ]$ T* e1 s9 ?, f) \# q5 l, 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。# w4 l, E: [! Z* e0 h: o
and weight them.tvb now,tvbnow,bttvb7 q# L& h- h7 @1 o V3 [% E& ^/ Y
3 x weighing and get the ans. 0 N. E: c8 _$ w. I" ~
in less than 15 secs. |