first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb5 u. \* s" A& d: q
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...tvb now,tvbnow,bttvb, ]9 a3 h8 i) C* T4 l: ^* m1 R
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。4 z: I) n2 o) S7 B) n
when u use tat 3 groups to test... u oredi know it is heavier or not...tvb now,tvbnow,bttvb4 W/ |: t& ~5 P2 I
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...公仔箱論壇6 B7 J# _" B( j- G& i
take the heavier or lighter 1... throw away tat 2 normal ball...
. [- v( V, q9 _3 b# F! nwww3.tvboxnow.comden u juz nit 2 test the last 2 balls...www3.tvboxnow.com2 S* H7 m2 T+ D5 v
same for now... take the heavier or lighter 1... |