first divide it into 3 groups... 4 for each group...# x* m7 ^; L" b1 P0 [+ g% `6 X" J
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...
; b1 I- V' o( Z" P, fTVBNOW 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。den... left 4 balls...
$ H# @' e: V' V. x. [ M2 n. s- Btvb now,tvbnow,bttvbwhen u use tat 3 groups to test... u oredi know it is heavier or not...tvb now,tvbnow,bttvb8 r0 {* {# u$ q5 \" A* s( U
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...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。0 \9 q% D9 |: M1 O
take the heavier or lighter 1... throw away tat 2 normal ball...
& }& F& [- ^! D$ ^) m: Gtvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...
K% g1 g# Y- T9 h8 e9 R: k8 ~" uTVBNOW 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。same for now... take the heavier or lighter 1... |