first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb9 v& L1 [- |6 V: ~6 K1 Q/ s- e
den 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...
: \+ U* t3 K4 V8 q( r3 XTVBNOW 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... left 4 balls...6 [1 F" }/ P( T3 }
when u use tat 3 groups to test... u oredi know it is heavier or not...
) Q' f/ a( h0 T) F |/ u, {+ otvb now,tvbnow,bttvbso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
, v m/ ^7 T5 Ctvb now,tvbnow,bttvbtake the heavier or lighter 1... throw away tat 2 normal ball...
- \" G5 N- w' A7 S; X9 e9 N9 z% O5.39.217.77den u juz nit 2 test the last 2 balls...
1 @- @; U0 Z0 W& Bsame for now... take the heavier or lighter 1... |