first divide it into 3 groups... 4 for each group...
$ W/ x5 g, B) d6 Dtvb now,tvbnow,bttvbden 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...
9 B; e9 v |: _. ^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。den... left 4 balls...
4 O+ T) E/ r/ \% x4 Ytvb now,tvbnow,bttvbwhen u use tat 3 groups to test... u oredi know it is heavier or not...
8 h9 g) C7 T r) U5 l% Fso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...tvb now,tvbnow,bttvb' V- m7 ^) V d$ S u; e }
take the heavier or lighter 1... throw away tat 2 normal ball...8 e& q+ l) B. S$ a: g$ Q1 ?$ I) S- Z
den 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。6 n+ z- ?& h6 W& ]4 Q n1 g
same for now... take the heavier or lighter 1... |