first divide it into 3 groups... 4 for each group...
# j; E0 ~4 `3 h/ @9 K8 F: @, S. Vwww2.tvboxnow.comden 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...tvb now,tvbnow,bttvb/ y1 O: {8 o/ P! Q+ _( Z
den... left 4 balls...5 z: o$ P% F( K& I3 i5 D
when u use tat 3 groups to test... u oredi know it is heavier or not...
3 T" V9 `# W$ \- T( W6 ?2 Ttvb now,tvbnow,bttvbso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
$ x" d5 ^1 P# t0 K6 p6 ptake the heavier or lighter 1... throw away tat 2 normal ball...) k- ?6 l3 I' r1 Z4 S
den u juz nit 2 test the last 2 balls...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。9 }! `4 c4 g1 x# z; o$ z
same for now... take the heavier or lighter 1... |