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。4 p8 x7 A) |; n$ o! w4 p' ~% 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)+ Z2 {! u; X8 c8 r% n5 y/ [
3. Same method if is not equal on 2nd try.