first divide it into 3 groups... 4 for each group...
" Z9 I1 e4 M$ r+ e" J5 M$ L7 O: j1 `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 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...
* l, S( M, I. mtvb now,tvbnow,bttvbden... left 4 balls...% p& `# S) {5 E" N
when u use tat 3 groups to test... u oredi know it is heavier or not...公仔箱論壇. E+ }/ |8 R* m
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...tvb now,tvbnow,bttvb7 ` ]% _4 h1 ~6 Z" ~
take the heavier or lighter 1... throw away tat 2 normal ball...
# d& k) S7 \$ A# e% d( w/ S) uden 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。6 q0 G) Q9 R! ^
same for now... take the heavier or lighter 1... |