1. 1st divide to half take the heavier outTVBNOW 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。& G8 A) Z& X1 R) U$ [5 L' u1 J* B7 R
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)5.39.217.760 P% j4 Q8 F3 D: e" M
3. Same method if is not equal on 2nd try.