first divide it into 3 groups... 4 for each group...
; ?* U5 ]( \6 itvb 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...2 f* Y, C' {* B1 D2 {
den... left 4 balls...tvb now,tvbnow,bttvb; q( B$ m H5 @$ N, X% z0 P: |" q0 B+ M
when u use tat 3 groups to test... u oredi know it is heavier or not...tvb now,tvbnow,bttvb7 Z4 E5 d- Q: t, J5 o
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
4 ^. j% K2 w: n @公仔箱論壇take the heavier or lighter 1... throw away tat 2 normal ball...
# b; C, D! S$ u; ]' `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。den u juz nit 2 test the last 2 balls...
5 N r. i$ e# P& Zsame for now... take the heavier or lighter 1... |