That is a very simple mathematics question.
6 F2 ^3 c6 ^, Q( a+ U' Jtvb now,tvbnow,bttvbLet x = Male, y = Female, z = ChildTVBNOW 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。! M) M# I4 K% t2 i0 R0 ^
6x + 3y + z/2 = 100 Formula 1+ H, m. h: H3 p1 y
x + y + z = 100 Formula 2TVBNOW 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。3 M$ h* Y+ M1 t* j& m
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
- W, ~7 q( b; y' y; ttvb now,tvbnow,bttvbSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
4 v: V7 V5 c7 j9 P: ltvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 55.39.217.768 B2 C' ?+ `3 D
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.+ T# Y* C5 z4 V) ?
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.
; _4 w Y8 }) p6 O/ m0 {公仔箱論壇Eventually, the answer is 20 female and 80 children and no male. |