first divide it into 3 groups... 4 for each group...
2 J% k8 F c0 W4 ~: 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...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。+ Z: B% f" R( r& a8 ]
den... left 4 balls...
2 E2 H& T9 f* ]: [9 C0 {: }tvb now,tvbnow,bttvbwhen u use tat 3 groups to test... u oredi know it is heavier or not...2 w$ _) Y, d! Y- G5 x, Q% \
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...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。5 X6 @4 L( L& `4 L
take the heavier or lighter 1... throw away tat 2 normal ball...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。- O! U/ \9 ^' y1 F. G
den u juz nit 2 test the last 2 balls...
6 v0 Q i- \: d, ?+ ?% b! Xtvb now,tvbnow,bttvbsame for now... take the heavier or lighter 1... |