That is a very simple mathematics question.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。' l1 W/ w. t8 y( R& B% ^* e* Y
Let x = Male, y = Female, z = Child - y) A0 G; ^2 |. W3 aTVBNOW 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 l: X& i# s% ux + y + z = 100 Formula 2 6 i% j- {% z& G6 \+ W R% I公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 ; H8 x) h. X- S, E% c9 L5 SSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 , R0 k) o; ?( {# yFormula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇$ `9 p" X! H/ h' x* a# S( L
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 6 h, K! N1 D9 E5 E. S5.39.217.76And 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. z! |8 _& |; S/ d$ l
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,children公仔箱論壇3 H$ V& C( p& V/ f
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM