gensy850711

first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb* m" [  @  X* s  U$ b
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...5.39.217.76$ A4 m3 `* y, ~5 \9 }) i
den... left 4 balls...公仔箱論壇3 e+ Q: d6 {/ @6 c
when u use tat 3 groups to test... u oredi know it is heavier or not...公仔箱論壇( f2 c* x! K8 P# a
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
6 a. Q: y3 H1 n; o  ATVBNOW 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。take the heavier or lighter 1... throw away tat 2 normal ball...
; [2 N8 P7 T  G3 Pden u juz nit 2 test the last 2 balls...公仔箱論壇9 W) y5 h! Q0 Y$ ]# I
same for now... take the heavier or lighter 1...