first divide it into 3 groups... 4 for each group...
& u( `0 O5 B. |2 W$ otvb 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...tvb now,tvbnow,bttvb, g p" G8 H6 `! ?
den... left 4 balls...
- i: r3 V# h# B5 gTVBNOW 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...
7 ?5 M: r) c) r6 s# M2 y5 `so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...! a- J- C# \) _% t" U
take the heavier or lighter 1... throw away tat 2 normal ball.... D \" M: A7 S* [5 A% M
den u juz nit 2 test the last 2 balls...5.39.217.768 S4 M I* h }2 r3 {+ O6 p
same for now... take the heavier or lighter 1... |