1. 1st divide to half take the heavier out公仔箱論壇4 r: s3 ~: R z y) s( V/ C
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) 3 Y% I' w( B/ g5 RTVBNOW 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。3. Same method if is not equal on 2nd try.