first divide it into 3 groups... 4 for each group...
3 t5 c9 Z! F5 b* \0 c* Z% E! xtvb now,tvbnow,bttvbden 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,bttvb6 {) C2 U n+ G$ }! p1 |9 I& a- S
den... left 4 balls...
) ?; s+ d: T; W! z" k+ G/ HTVBNOW 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。when u use tat 3 groups to test... u oredi know it is heavier or not...
) m# \, u) V6 U& E# Z3 _* yso 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。/ l- b! B" Y2 I/ J
take the heavier or lighter 1... throw away tat 2 normal ball...6 o) W" }) U+ I1 ?5 j
den u juz nit 2 test the last 2 balls...tvb now,tvbnow,bttvb- i6 ^' Y! p, [8 g1 V
same for now... take the heavier or lighter 1... |