first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb+ l7 P+ R4 r' Z- }+ H! V H x
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...
" c. [" E' _5 r l2 p0 GTVBNOW 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...tvb now,tvbnow,bttvb7 F5 l2 `$ \2 y* V# E* m
when u use tat 3 groups to test... u oredi know it is heavier or not...
/ f9 V) }2 m* y: z- l' K0 pso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...( d; p- _- z! D0 Y. E9 N
take the heavier or lighter 1... throw away tat 2 normal ball...
+ t7 u9 B9 V0 Q% Z& }$ N: Wtvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...
( L, d* \3 h m7 H3 F5.39.217.76same for now... take the heavier or lighter 1... |