divde the 12 balls into 3 sets of 4. 5.39.217.76* V* w4 o: `' w+ X- o; h# L2 r
weight any 2 sets.
7 h. Y+ X9 u& x0 ztvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the third
: q9 L H9 k5 v- m5.39.217.76if one of the 2 is heavier, then the heavy one is in that set
" a' E/ [. b. a ?4 Btvb now,tvbnow,bttvbthen divide the 4 balls into 2.. t2 O% O. Q1 L' O( g
weigh them, d8 C, ~$ I* R r! x' ]
and divide the heavier into 1公仔箱論壇, T. F& K. S' j
and weight them.
& H/ |0 l7 {* B7 P7 Y: XTVBNOW 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。3 x weighing and get the ans.
2 _& E8 J! \; J! y% s, Nin less than 15 secs. |