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。) ` ^3 K/ @, l/ Z8 \
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。6 Y2 a2 V/ r9 `
den... left 4 balls...
+ W0 g# E$ I' H8 Q' {- r1 W' D" ^公仔箱論壇when u use tat 3 groups to test... u oredi know it is heavier or not..." w& }+ P7 T' W" ] `8 n) u' n# ]& x
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1..., A0 {3 i5 n9 w. O
take the heavier or lighter 1... throw away tat 2 normal ball...8 E4 C& h, c6 R5 o q
den u juz nit 2 test the last 2 balls...tvb now,tvbnow,bttvb `* z7 Y( n6 Y- w/ W
same for now... take the heavier or lighter 1... |