first divide it into 3 groups... 4 for each group...
% y, M3 Z: A/ Y9 j) D$ etvb 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...5.39.217.77:8898; A9 ~3 Q9 ]/ j9 h+ I
den... left 4 balls...
6 Y% w" c+ @# s( w" M# fTVBNOW 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...* q# i/ i$ \5 b5 |* u- J0 G! n
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
. U0 ]1 r8 H7 \+ i9 I1 Atake the heavier or lighter 1... throw away tat 2 normal ball...
: R9 ?6 v# A2 r! z& j( g% w公仔箱論壇den u juz nit 2 test the last 2 balls...tvb now,tvbnow,bttvb; k% P) e# {% J; M* `
same for now... take the heavier or lighter 1... |