first divide it into 3 groups... 4 for each group...
m2 h/ s7 k6 l; L. O9 cTVBNOW 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 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...
/ i6 }, A. e* Y0 p% lden... left 4 balls...www3.tvboxnow.com, s/ s% O9 J( F3 m& L, D9 V
when u use tat 3 groups to test... u oredi know it is heavier or not...
~6 X( q: u( z9 z' {" `0 \6 K5 gso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...公仔箱論壇$ [6 Y# a/ c! C& p, s$ r0 F- a5 @
take the heavier or lighter 1... throw away tat 2 normal ball...
( s9 R- Z& _1 ]5 E$ |. Otvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...www3.tvboxnow.com9 Q# ]! Z& k; { o2 [
same for now... take the heavier or lighter 1... |