first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb$ O! H7 Q) S1 {( F1 I9 i: \6 x9 w
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...
6 C; @+ h8 z/ J# h/ v4 V9 x+ s" `公仔箱論壇den... left 4 balls...tvb now,tvbnow,bttvb* j1 D+ ]2 [& Z8 n3 E
when u use tat 3 groups to test... u oredi know it is heavier or not...tvb now,tvbnow,bttvb& j' h1 z q/ I( P+ U+ I
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
4 @( d- |2 X" R/ v1 m7 J! k- o3 Vtake the heavier or lighter 1... throw away tat 2 normal ball...tvb now,tvbnow,bttvb& T2 _0 U' V% R) \0 i( R5 O. f2 K+ Y
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。4 @- X7 |+ u2 b3 {
same for now... take the heavier or lighter 1... |