first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb( Q2 V6 e* u7 j2 u1 k+ T* H
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# T; i3 |5 Z1 I# U
den... left 4 balls...( p1 g a: z1 E' ]1 {. ~2 p. A
when u use tat 3 groups to test... u oredi know it is heavier or not...www.tvboxnow.com2 I, i+ o5 q+ w; ]; F
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
1 ]; |6 }/ @/ ~9 L z& ?, ytvb now,tvbnow,bttvbtake the heavier or lighter 1... throw away tat 2 normal ball...
$ n; I: [- S3 @4 \# G, B% m3 [7 T公仔箱論壇den 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。3 e. D) K( _9 X; n
same for now... take the heavier or lighter 1... |