first divide it into 3 groups... 4 for each group...公仔箱論壇& @1 y6 N, f0 o7 D# ^; w; |
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...5 u, p7 Q% j; p8 k) ~
den... left 4 balls...
, ]7 K, t$ U" [& A' ?tvb now,tvbnow,bttvbwhen u use tat 3 groups to test... u oredi know it is heavier or not...公仔箱論壇9 O5 f1 F. H6 ]8 x: L7 w$ e
so 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 }) w9 Q% _/ P# Z9 t0 o' Z; ~
take the heavier or lighter 1... throw away tat 2 normal ball...
6 [5 r2 }. o: U$ Bden u juz nit 2 test the last 2 balls...www1.tvboxnow.com" M! w4 d( ]/ t7 e
same for now... take the heavier or lighter 1... |