first divide it into 3 groups... 4 for each group...
; |2 @2 R5 M0 h* @7 F; e$ K0 v公仔箱論壇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...8 m# U' o" J2 l) t; A+ h3 |4 ^
den... left 4 balls...% x& z0 ], V5 }" A' b8 c6 M
when 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。# }" C1 V7 B; [$ N$ b& u; d) a
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...tvb now,tvbnow,bttvb8 ~5 r) ?- \: l
take the heavier or lighter 1... throw away tat 2 normal ball...tvb now,tvbnow,bttvb$ w6 \: L; Q) z6 J' b+ ~
den u juz nit 2 test the last 2 balls...5.39.217.77:8898" b' I2 Y* B' f, ]
same for now... take the heavier or lighter 1... |