first divide it into 3 groups... 4 for each group...
& K4 s. B H/ n9 O* Otvb 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...
# b/ x" B8 q5 o- X3 ?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...
/ `: B# b, D( N$ S$ |0 \when u use tat 3 groups to test... u oredi know it is heavier or not...
; ]1 T* Q: I, Rso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...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。0 ]* @$ {+ t/ M0 v- y
take the heavier or lighter 1... throw away tat 2 normal ball...
' f* i8 f: _5 M. P, u" t8 } i7 Bden u juz nit 2 test the last 2 balls...& H+ I* g( w7 Q2 U
same for now... take the heavier or lighter 1... |