first divide it into 3 groups... 4 for each group...
4 E/ w, ~; I7 w+ M1 a( Q3 N公仔箱論壇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...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。; g+ |" K! Z1 H# I* _- i0 ?) I9 O
den... left 4 balls...
0 W, `; [! W- X1 z/ t) zwhen u use tat 3 groups to test... u oredi know it is heavier or not...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。) \, t5 G" t7 ^
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...# m- ]& d- F% W0 j# ~- B
take the heavier or lighter 1... throw away tat 2 normal ball...
0 T7 y+ K2 J5 c( E j6 h1 k+ sos.tvboxnow.comden u juz nit 2 test the last 2 balls...
1 h8 z, I4 D/ ?0 G1 C, Y: Q$ k3 m公仔箱論壇same for now... take the heavier or lighter 1... |