first divide it into 3 groups... 4 for each group...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。. h: V* R2 B" Z3 h# N* k3 n9 ?+ w
den use 2 groups to test... if the weight is same... den throw away these 2 groups.. if not... use another 1 group to test with tat 2 groups... throw away the same weight groups...
5 g/ y4 ?/ E e" j, z公仔箱論壇den... left 4 balls...
, T5 |% ?, w- R% o5 Ctvb now,tvbnow,bttvbwhen u use tat 3 groups to test... u oredi know it is heavier or not...: F* H4 R: ?% s: e: X' ~) T1 {. ~
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1..." H2 B1 y& x& Z' Z& B& J
take the heavier or lighter 1... throw away tat 2 normal ball.... S8 `6 o* H2 Z1 \# i8 e6 d
den u juz nit 2 test the last 2 balls...4 Q9 O& z9 W, g
same for now... take the heavier or lighter 1... |