divde the 12 balls into 3 sets of 4.
: b) q$ F5 b% F' U1 s7 ~6 k5.39.217.77:8898weight any 2 sets.
: V) H4 B/ O/ L, c1 _& X7 J& C5.39.217.77:8898if the 2 sets are equal, then you know the heavy one is in the third- h+ t: d4 d( v/ J
if one of the 2 is heavier, then the heavy one is in that settvb now,tvbnow,bttvb" U/ `" E& Y5 X% b d
then divide the 4 balls into 2.
7 B8 V- w6 s. @! @! fTVBNOW 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。weigh them5.39.217.77:88982 J! T5 P& n' N5 Y+ `% Y( W1 F
and divide the heavier into 1
& c8 V7 r3 h, ]0 L6 ?; z) J' wand weight them.
6 b8 |8 v. @7 _7 B& ~tvb now,tvbnow,bttvb3 x weighing and get the ans.
5 U; j! `1 K; o: e' N公仔箱論壇in less than 15 secs. |