first divide it into 3 groups... 4 for each group...
5 [$ p$ P8 ~3 q* _! U1 y6 I4 iden 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...
* {9 a/ Z$ u* [3 dtvb now,tvbnow,bttvbden... left 4 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。5 J& y0 G3 u* |+ \
when u use tat 3 groups to test... u oredi know it is heavier or not...
9 |2 d) o& `, G+ C* U. R9 o: mTVBNOW 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。so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...tvb now,tvbnow,bttvb# d3 h8 p7 S, j+ a) e6 H9 p, N
take the heavier or lighter 1... throw away tat 2 normal ball...公仔箱論壇+ K' N3 h0 W% M
den u juz nit 2 test the last 2 balls...! a. I' U7 ?5 n$ \2 L4 s& H
same for now... take the heavier or lighter 1... |