原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
) J. }& Z, l% T, o+ k/ i9 n* D5.39.217.77:8898first, compare 6 and another 6. they must have difference. 5.39.217.77:8898* m2 x5 U- ^* t. P. _0 |" }7 t2 `
second, divide those 6 heavier one into two, each has 3. u will find difference again.9 ?& C7 }0 K& b! L
third time, if u put 2 and they are equal, u will kno ... ' E6 e! ~, {8 w, y7 P5.39.217.77:8898TVBNOW 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。# ]- X! Z# V1 Y7 N% K1 V' P; m
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |