divde the 12 balls into 3 sets of 4.
% }+ s' g* P/ I: j% oTVBNOW 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.
9 i1 Y& F0 E; _8 F0 b' t公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the third
5 R9 W$ I" U# ~7 aif one of the 2 is heavier, then the heavy one is in that set公仔箱論壇4 s4 k9 G& ]; ]7 B4 L
then divide the 4 balls into 2.
8 I' d9 D% Q- y* Q% Z公仔箱論壇weigh them
2 F( g$ }. H: T; J7 e( D0 Rand divide the heavier into 1
$ N; H) L! d6 U! x) [; u+ e* r7 Iwww1.tvboxnow.comand weight them.
$ a# `; B; m7 p% A) etvb now,tvbnow,bttvb3 x weighing and get the ans.
4 j, @. d+ h: Htvb now,tvbnow,bttvbin less than 15 secs. |