divde the 12 balls into 3 sets of 4. 2 J% w, Q2 z3 w- A# z
weight any 2 sets.
: L: U U8 _" j4 Nif the 2 sets are equal, then you know the heavy one is in the third
" ~6 B; H0 `, u% B4 cwww2.tvboxnow.comif one of the 2 is heavier, then the heavy one is in that set, \6 W$ E1 O' A6 h4 c# A' w' a
then divide the 4 balls into 2.
# Q" A8 H8 z3 v+ Nweigh them
1 p! b) x* D- S6 x' gwww2.tvboxnow.comand divide the heavier into 1
8 B1 d3 h) y! ]9 J" BTVBNOW 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.2 I9 A- \! [, ~1 M. w
3 x weighing and get the ans.
/ y' [3 Y4 h7 k5 G+ d0 `# [公仔箱論壇in less than 15 secs. |