first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb5 A, r) z7 m2 q% K/ i
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...
0 |0 D6 ?0 j f |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。den... left 4 balls...tvb now,tvbnow,bttvb' f `: ?, D- X
when u use tat 3 groups to test... u oredi know it is heavier or not...
$ Y) q9 W, w6 V3 `' YTVBNOW 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。so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...; l# G' f( W: P2 }" h
take the heavier or lighter 1... throw away tat 2 normal ball...# A6 ~6 m5 U) v
den u juz nit 2 test the last 2 balls...公仔箱論壇 r, y& z; L& u6 x q
same for now... take the heavier or lighter 1... |