first divide it into 3 groups... 4 for each group...
/ V& u/ Q, l: ~- d- x' g) D: ?os.tvboxnow.comden 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...
, {2 L$ v! b$ M% u$ E& @9 D* Y公仔箱論壇den... left 4 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。- a- _$ O, q$ G& J' |
when u use tat 3 groups to test... u oredi know it is heavier or not...公仔箱論壇" Z( }3 B$ X, ^( b {0 @
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...公仔箱論壇: Q# ^4 t" \0 p2 w! E, E
take the heavier or lighter 1... throw away tat 2 normal ball...公仔箱論壇1 i1 V) u5 K6 e0 b
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。8 K" L6 G% c6 A0 n2 R, R
same for now... take the heavier or lighter 1... |