this is too easy!!公仔箱論壇0 L; P3 N) H" p1 A3 @9 S. _
, K4 l3 A2 S- g q: XTVBNOW 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。1. put 6 at each side.. take the one side which is heavier公仔箱論壇) {+ y; z) X9 J0 Y: N& b. I
2. put 3 at each side.. also take the heavier side; m+ J. z) m: ?- f: \
3. put 1 at each side.. if the weight balance then the one not put inside is the heavy ball.. else the side which is heavier is the heavier ball.. |