first divide it into 3 groups... 4 for each group...% k$ S0 j8 x: y* D! ^& f3 L
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...
+ q$ F1 j8 ^5 R3 e+ atvb now,tvbnow,bttvbden... left 4 balls...
6 i) ~( x) d, [7 X: \* Z公仔箱論壇when u use tat 3 groups to test... u oredi know it is heavier or not...
; ?* O4 j: `# H' [* M5.39.217.76so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
* K8 C) z* q% ^; O; h# eTVBNOW 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。take the heavier or lighter 1... throw away tat 2 normal ball...
; z2 x$ y @) V4 F( M Vden u juz nit 2 test the last 2 balls...tvb now,tvbnow,bttvb: T7 }/ K6 p. t% F1 N; X
same for now... take the heavier or lighter 1... |