first divide it into 3 groups... 4 for each group...
" B1 j; ]- W0 ]: S! N/ BTVBNOW 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...
0 w$ O B$ X! B8 j# D# c% xtvb now,tvbnow,bttvbden... left 4 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。 g5 X1 m( @0 C3 q
when u use tat 3 groups to test... u oredi know it is heavier or not...
9 v8 f5 t$ k- v" x5.39.217.77so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
9 a0 r, m0 `. `/ w7 U5.39.217.77take the heavier or lighter 1... throw away tat 2 normal ball...
0 H& A8 ~- s7 Itvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...5.39.217.773 t7 y5 D9 y- {' a
same for now... take the heavier or lighter 1... |