first divide it into 3 groups... 4 for each group...
( h& k3 K3 }( x8 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...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。* v3 k3 P4 Z, C" N9 Z
den... left 4 balls..." c/ I* M. Z: `2 b. Q
when u use tat 3 groups to test... u oredi know it is heavier or not...# O) f+ L' h0 D7 h/ O4 z
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
5 g S" o$ c" D n8 t' Stvb now,tvbnow,bttvbtake the heavier or lighter 1... throw away tat 2 normal ball...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。8 t2 K1 {5 _0 N' K, ~# W0 Q
den u juz nit 2 test the last 2 balls...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。: C- V, x y; x/ e, x0 d. O
same for now... take the heavier or lighter 1... |