first divide it into 3 groups... 4 for each group...
, ?3 a7 X/ E# fTVBNOW 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 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。" b2 u; _/ }0 G) ]7 j, _
den... left 4 balls...
4 m+ Y2 A' }; b6 ^7 o; uwhen u use tat 3 groups to test... u oredi know it is heavier or not...
+ o1 f6 h! T L! e) i% V公仔箱論壇so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
) R0 S2 Q% B) c5 i公仔箱論壇take the heavier or lighter 1... throw away tat 2 normal ball...
6 j, v2 k/ V7 g3 W& }! p" `tvb now,tvbnow,bttvbden 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。) u" i& }6 s8 f( u, p7 V& s W
same for now... take the heavier or lighter 1... |