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。. s7 Q+ v5 K+ d' K
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,bttvb7 y$ P! c/ |8 z- r% G4 f, e
den... left 4 balls...
% j9 \' P* K. t8 `* F公仔箱論壇when u use tat 3 groups to test... u oredi know it is heavier or not...- r7 Z5 o+ \8 i, t2 g' `# k
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...公仔箱論壇3 n5 j. {8 _$ l/ O5 |
take the heavier or lighter 1... throw away tat 2 normal ball...
/ B: @% V7 s7 k/ j* ftvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...tvb now,tvbnow,bttvb7 p* D$ ^4 [: x& B
same for now... take the heavier or lighter 1... |