divde the 12 balls into 3 sets of 4.
1 B, n& K# H3 hweight any 2 sets.
0 q6 o4 O1 j* m, x# z% Y c; nTVBNOW 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 third公仔箱論壇- G- b1 }* X$ L0 \9 `+ Q& R$ U
if one of the 2 is heavier, then the heavy one is in that set" t+ ?+ [- y) } Y
then divide the 4 balls into 2.
3 ^( `9 s! r% t x* vtvb now,tvbnow,bttvbweigh them+ ^3 E3 g2 z, }1 o6 |' y. T2 ~+ U
and divide the heavier into 1
' Y& C) [+ s8 O$ q0 z# A+ A( _ vand weight them.公仔箱論壇( z+ y: _- s1 T! i& {
3 x weighing and get the ans.
2 c3 i6 e/ Z1 f9 ~www.tvboxnow.comin less than 15 secs. |