first divide it into 3 groups... 4 for each group...
1 ]# n6 c( J) Y6 vden 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/ T# x7 O' t5 ?/ e V. L% U
den... left 4 balls...8 P$ c4 Q! [$ l P' z Y
when u use tat 3 groups to test... u oredi know it is heavier or not...tvb now,tvbnow,bttvb M4 X0 Q& X t
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
( ?) N) j- W9 V& }' q3 dTVBNOW 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。take the heavier or lighter 1... throw away tat 2 normal ball...
# q! t- o' E! C" B' }tvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...
/ `3 k) H1 N1 p" }2 ~3 i3 h/ gos.tvboxnow.comsame for now... take the heavier or lighter 1... |