first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb. l0 R, U5 L- n& C5 B9 \
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...5.39.217.761 p1 j6 y8 L) C8 v6 v# y0 Y* l. T
den... left 4 balls...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。% O5 U4 g7 H7 W* o
when u use tat 3 groups to test... u oredi know it is heavier or not...
' @4 R8 M( U7 E) A% g1 b, H" B1 fTVBNOW 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。so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...5.39.217.760 H% h- ^; s) b, P5 j* L: ~% Q7 ]# \4 e, _
take the heavier or lighter 1... throw away tat 2 normal ball...tvb now,tvbnow,bttvb: o/ Y6 v* _! T9 W" Z; e
den u juz nit 2 test the last 2 balls...
8 O% L9 m& m" L- e: a* X& isame for now... take the heavier or lighter 1... |