first divide it into 3 groups... 4 for each group...公仔箱論壇. i+ [1 _8 r5 }9 r9 d4 l" R
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...
+ `! }& |/ z, _; y; |3 Ros.tvboxnow.comden... left 4 balls...tvb now,tvbnow,bttvb; `7 s2 F) G- p( R1 m2 [
when u use tat 3 groups to test... u oredi know it is heavier or not...
# ]. M- c8 B7 _0 y1 t1 {. Q3 Uso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...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。7 g5 f; X2 ~! R" q* Z0 ]
take the heavier or lighter 1... throw away tat 2 normal ball...
! ?7 Q. Z; X$ m" ?tvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...公仔箱論壇) Z1 F) n! A4 `" M. x$ R
same for now... take the heavier or lighter 1... |