divde the 12 balls into 3 sets of 4.
$ K; d7 o+ Y' U+ J% Z3 L! Jweight any 2 sets.
4 e/ _& `& s9 t+ q) U, y" t& Q7 c' N! ?公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the third
9 R0 w `- Y/ l3 iif 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。, b, L1 ~9 \/ s) K; \" Y$ K5 q
then divide the 4 balls into 2.tvb now,tvbnow,bttvb- w/ N1 [! l/ v# \. F
weigh themtvb now,tvbnow,bttvb; e# k7 a! N! Y2 S" D8 P
and divide the heavier into 1TVBNOW 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。) O3 ~9 D. R* ]8 X( A. z
and weight them.
' f3 R' }' I; l6 |& K! t2 E8 J3 x weighing and get the ans.
; l' A6 M( @/ u- J) ~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。in less than 15 secs. |