That is a very simple mathematics question. , a e" a( k( tTVBNOW 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。Let x = Male, y = Female, z = Child ; a) i4 e& b% G1 _. r+ 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。6x + 3y + z/2 = 100 Formula 1 - Z/ s( P* I/ a8 G; G5 @, ]! y公仔箱論壇x + y + z = 100 Formula 2 ( D4 `- \8 }8 Z' W9 V5 s1 `/ \+ N" Ztvb now,tvbnow,bttvbSimplify Formula 2 into z, we get z = 100 - x - y Formula 3 & ~1 [5 s9 |" O& c* X% K- z( y+ q公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 ; v; k3 m5 M) @+ p& D2 Stvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5TVBNOW 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。7 n9 u; }" N' ~- l! n2 O4 s
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb- }9 \$ }0 Y% X& D
And between 0 and 9, only 0 can give me a single number of y. So, x has to be 0 and y have to be 20. Then put x and y back to formula 1, we get z = 80. + Q: q; R. l: QTVBNOW 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。Eventually, the answer is 20 female and 80 children and no male.作者: alan1234 時間: 2007-10-14 12:19 AM 標題: two answers
man,female,children9 k5 J9 I9 ^& J8 ~& H. F8 W
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM