first divide it into 3 groups... 4 for each group...
0 _- t9 ?% b: `- c7 m3 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...公仔箱論壇8 Q/ U3 B/ J' H. k" H) b
den... left 4 balls...
) i- r0 U5 l1 k' F# Jtvb now,tvbnow,bttvbwhen u use tat 3 groups to test... u oredi know it is heavier or not...
G$ @+ ?7 x9 STVBNOW 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。so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...tvb now,tvbnow,bttvb8 m: {3 l: G- z& s! d
take the heavier or lighter 1... throw away tat 2 normal ball...5.39.217.77:88981 S! H# \0 R( A3 X7 D
den u juz nit 2 test the last 2 balls...
% y* V' D) n, tsame for now... take the heavier or lighter 1... |