first divide it into 3 groups... 4 for each group...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。 l9 j" f4 D) p' y/ F+ F8 h' x 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...公仔箱論壇/ ^* L) g; g/ i8 i# g
den... left 4 balls...1 ^7 d/ E# ]% l/ V) X
when u use tat 3 groups to test... u oredi know it is heavier or not...
' j: ]# V& I/ k- i7 Xso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...tvb now,tvbnow,bttvb! `" k) |9 @( U' s1 w5 D, E
take the heavier or lighter 1... throw away tat 2 normal ball...
3 z$ C( P! T' I* Q' }, t! Zden u juz nit 2 test the last 2 balls...tvb now,tvbnow,bttvb- R" [7 w8 B' d4 W' e! G
same for now... take the heavier or lighter 1... |