divde the 12 balls into 3 sets of 4. tvb now,tvbnow,bttvb; M' l D, N$ ?/ T
weight any 2 sets.
9 G. j0 g3 a3 i- V5.39.217.77:8898if the 2 sets are equal, then you know the heavy one is in the thirdTVBNOW 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。; z$ f+ m& K. H: a8 Y
if one of the 2 is heavier, then the heavy one is in that setTVBNOW 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。$ a0 b4 ]: _- B" A9 @. u/ ]. n
then divide the 4 balls into 2.# u/ E9 X. T2 G' V0 k
weigh them
( I3 N8 h4 A: B$ @0 J1 S; g! u3 rtvb now,tvbnow,bttvband divide the heavier into 1
7 o+ i- q, a# ?9 U. vTVBNOW 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。and weight them.TVBNOW 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。* J! {9 Y' U0 o" \3 y! \+ O+ h
3 x weighing and get the ans.
8 T3 o+ N. Q2 j* d/ p/ w8 yin less than 15 secs. |