divde the 12 balls into 3 sets of 4.
' w; T5 b& X/ m8 w3 n公仔箱論壇weight any 2 sets.
9 {1 Q3 F+ q2 p# n4 w$ D5 Y5.39.217.77if the 2 sets are equal, then you know the heavy one is in the third5.39.217.772 Q* e" d+ L. B( t
if one of the 2 is heavier, then the heavy one is in that settvb now,tvbnow,bttvb) e0 H9 Y) Z9 a3 d# M
then divide the 4 balls into 2.
( f- j& k- O7 s1 I6 A公仔箱論壇weigh themTVBNOW 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。) ^. U/ L, @2 O
and divide the heavier into 1
& |* f/ V) m2 |$ V. m: w1 m- otvb now,tvbnow,bttvband weight them.
/ w) J3 c1 T: ltvb now,tvbnow,bttvb3 x weighing and get the ans.
. E. O. z7 f' i* {6 M. M公仔箱論壇in less than 15 secs. |