i found the ans in 30 mins but dont know correct or not?
$ n& S* g# q b% F3 bans is too long! but concepts are something like that:
+ f# X `9 C) Oseprate 4 groups 3 balls in one group!
8 H( U* Y& [! I# wTVBNOW 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。the important part is the 2nd times which need to find out the fake ball is heavier or lighter by use the normal ball that u find at the first time!tvb now,tvbnow,bttvb* r* j* p* y- g# O9 s% w7 U; N
the last part is 1ball vs 1ball! something like that |