gensy850711

first divide it into 3 groups... 4 for each group...' {( ~2 Q8 H, S0 \# t
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...公仔箱論壇& ^$ E- Q# q3 o% ?3 O
den... left 4 balls...
# B! u7 I% ~; M5.39.217.77:8898when u use tat 3 groups to test... u oredi know it is heavier or not...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。5 k% |9 C  Y/ o- v' h
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...5.39.217.77:8898, q) n3 h5 T) g
take the heavier or lighter 1... throw away tat 2 normal ball...
, S" J0 I+ m! s1 [' H; ]$ Jden u juz nit 2 test the last 2 balls...5.39.217.77:8898& V" a$ w  d" y. I' N1 V2 W
same for now... take the heavier or lighter 1...