first divide it into 3 groups... 4 for each group...公仔箱論壇6 V% U# J% D( S6 c
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...
; }" J- j2 G$ |% c' m; o公仔箱論壇den... left 4 balls...tvb now,tvbnow,bttvb4 \; _4 _% b' h
when u use tat 3 groups to test... u oredi know it is heavier or not... F4 B3 T9 P; P! I
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
! ~ P- ~# E Q0 ?" G: O公仔箱論壇take the heavier or lighter 1... throw away tat 2 normal ball...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。* p/ w9 e% ?, Z$ n+ M# j
den u juz nit 2 test the last 2 balls...tvb now,tvbnow,bttvb V; D, A) L5 [6 U/ |
same for now... take the heavier or lighter 1... |