first divide it into 3 groups... 4 for each group...# J" ^+ V* E9 E) c9 O
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...
) j, X7 A# Q" b% Y( o5.39.217.77den... left 4 balls...tvb now,tvbnow,bttvb, Y1 E! ~" J6 M$ G% q. Q
when u use tat 3 groups to test... u oredi know it is heavier or not...
6 l$ Y( ~" G) L" h8 { r5.39.217.77so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...% \$ G; ]. k$ w Q& |% }. m" P2 h. j
take the heavier or lighter 1... throw away tat 2 normal ball...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。! F' F+ ]( n5 V* I; n2 {( M
den u juz nit 2 test the last 2 balls...
4 C5 k7 t& ]* t- I1 n4 T- g, V3 {公仔箱論壇same for now... take the heavier or lighter 1... |