first divide it into 3 groups... 4 for each group...
* Y0 j" n3 z& `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...
& G. I$ q, d' _0 L9 @tvb now,tvbnow,bttvbden... left 4 balls...tvb now,tvbnow,bttvb4 }+ S0 h$ T. l! e* \
when u use tat 3 groups to test... u oredi know it is heavier or not...
1 i9 o2 I: w) l# cso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...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。# o8 q9 s" D4 }. D3 x& p. y
take the heavier or lighter 1... throw away tat 2 normal ball...
! _' r+ s1 f" V3 Xden u juz nit 2 test the last 2 balls...
6 a4 l9 q5 {" b( t) A公仔箱論壇same for now... take the heavier or lighter 1... |