That is a very simple mathematics question.1 n. `* M- V) f' S2 t/ R5 ^9 Z
Let x = Male, y = Female, z = Child
7 m) l( N; M3 S5 `+ W$ M4 p. Ltvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1TVBNOW 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。: b, t0 g' `! b T- y
x + y + z = 100 Formula 21 U6 \6 l0 U0 O, k
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
" e1 J$ C4 U! ?% JSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.77:8898, W- [* ^' g1 x3 f" w& ~
Formula 4 can change into 11x + 5y = 100 Formula 5
0 p/ X) }0 k( m# D; B! V: BTVBNOW 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。In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
H& e% m3 | f1 a3 e- kAnd 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.
; l9 C" i. \+ ~5.39.217.77:8898Eventually, the answer is 20 female and 80 children and no male. |