first divide it into 3 groups... 4 for each group...www3.tvboxnow.com6 j* O7 {; D6 Z) y5 ^# C
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 x6 J* g3 P4 p, t: J" fTVBNOW 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...$ @, e4 k0 ^& t5 S
when u use tat 3 groups to test... u oredi know it is heavier or not...
7 p" W+ |! V) {# q# W7 s0 p2 T; ^公仔箱論壇so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
5 N8 j C- n C, v& m3 iwww3.tvboxnow.comtake the heavier or lighter 1... throw away tat 2 normal ball...! ?& Y6 I' g r1 q) c2 ?$ x6 j
den u juz nit 2 test the last 2 balls...
) }6 ] @; `5 @$ P& o$ D& b" }tvb now,tvbnow,bttvbsame for now... take the heavier or lighter 1... |