first divide it into 3 groups... 4 for each group...
- H, X6 M: H5 E9 D: zTVBNOW 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 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...公仔箱論壇) F3 L# |; R, s k8 ~5 q1 H5 C
den... left 4 balls...
- T* V2 K4 l+ z9 [# g/ pwhen u use tat 3 groups to test... u oredi know it is heavier or not...
* Y4 P$ C& o6 r( Btvb now,tvbnow,bttvbso 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。5 c7 d8 [+ C& ]4 _
take the heavier or lighter 1... throw away tat 2 normal ball...
) [. p- l# [: d4 D! _ S& ^4 e/ Atvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...4 n4 S7 N; S0 L, ~7 q4 t/ V* L
same for now... take the heavier or lighter 1... |