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。$ Y3 p5 W0 ~8 r: y* {
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...公仔箱論壇: h- _8 |8 o9 S" C( J
den... left 4 balls...tvb now,tvbnow,bttvb, ?: o! C5 Q: Y# H$ t
when u use tat 3 groups to test... u oredi know it is heavier or not...tvb now,tvbnow,bttvb* v" M: B1 C+ {5 W" X$ k
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
7 W. d( Y/ U8 g5 T$ `5 w公仔箱論壇take the heavier or lighter 1... throw away tat 2 normal ball...
* l! i F9 N% hTVBNOW 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 u juz nit 2 test the last 2 balls...公仔箱論壇, t3 t: |6 K& J) q6 z
same for now... take the heavier or lighter 1... |