first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb+ }7 V3 K( S8 D" e
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...
' V$ [! W- Y: q( m! b- kos.tvboxnow.comden... left 4 balls...
- ^6 n1 S, Y# Uwhen u use tat 3 groups to test... u oredi know it is heavier or not...
6 B0 k6 r8 N0 f: {( J$ j5 L) 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...公仔箱論壇) [! y0 O+ i! @' G, @: g+ p; w
take the heavier or lighter 1... throw away tat 2 normal ball...6 {5 R" o- U/ Q M' b- y
den u juz nit 2 test the last 2 balls...
* V( \2 {# |/ M% _ _tvb now,tvbnow,bttvbsame for now... take the heavier or lighter 1... |