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。! R( k, z6 x/ A5 \) J
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...
' Q' u) e" z; G1 r3 K" X/ zTVBNOW 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... left 4 balls...) l! G$ d3 `" j+ r+ j4 J5 v$ f
when u use tat 3 groups to test... u oredi know it is heavier or not...tvb now,tvbnow,bttvb& D+ a& z- K& G# w; x _# X9 c0 y
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
9 r5 X0 \ u$ L: D8 f( s% Etvb now,tvbnow,bttvbtake the heavier or lighter 1... throw away tat 2 normal ball...公仔箱論壇0 Z; s8 A3 o0 C! _- Z) K8 j; Z- D
den u juz nit 2 test the last 2 balls...公仔箱論壇4 K* y0 j7 N/ [3 w
same for now... take the heavier or lighter 1... |