1. 1st divide to half take the heavier out 9 s6 ?( b* s8 G: w" f' U. N5 F. L公仔箱論壇2. 2nd take 4 balls out of 5 divide 2 groups to get the heavier out. (if is equal thn the remain is the one u looking for)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。4 n* P6 t; O2 v9 b
3. Same method if is not equal on 2nd try.