first divide it into 3 groups... 4 for each group...tvb now,tvbnow,bttvb( E: c1 w s7 y1 K
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...
/ d) Q: ], A" L _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。( q8 e Q+ t* k8 Q# {+ H
when u use tat 3 groups to test... u oredi know it is heavier or not...
4 Y6 {, n; w( ?4 KTVBNOW 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...
+ }1 {! y v0 @7 k2 jtvb now,tvbnow,bttvbtake the heavier or lighter 1... throw away tat 2 normal ball...
3 \3 G7 |) q9 A5 r/ }+ ~tvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...
# a! H+ M' b( j5 A( S" I) O* \. x5 rtvb now,tvbnow,bttvbsame for now... take the heavier or lighter 1... |