2 }9 B8 j% s$ s/ {" i5.39.217.76答案30號公佈TVBNOW 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。- g- D* t3 N4 o
5.39.217.76" U, {2 k9 ]% A/ Y& Y+ X/ W
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]作者: twinsdragon 時間: 2007-10-13 05:40 PM
That is a very simple mathematics question.公仔箱論壇% \( B! n) _: @* ^: T! Q" g6 [
Let x = Male, y = Female, z = Child2 e: i* @2 \" G% e5 t6 k
6x + 3y + z/2 = 100 Formula 1 . r: D6 U$ L5 m: }. G5.39.217.76x + y + z = 100 Formula 2/ L1 p+ W! J/ I& \0 \. l
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 ! e9 J& ^4 h8 D3 \公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4tvb now,tvbnow,bttvb" b; |& z7 k9 e, \
Formula 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。2 h. q ^1 B- G6 R R
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.TVBNOW 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。; f/ B) X" U7 ^' b& Z! S
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. - n/ r4 F- Z! z u; LEventually, 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
* `7 H, @4 M9 I) {) Q; s公仔箱論壇11X must be 0 or multiple of 5 9 m, g* ^* q; x# a* ~5.39.217.76that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM