SOLUTION: In her morning class, the computer teacher has 20 students, 8 of whom are women and 12 of whom are men. If her afternoon class has 30 students, how many of them must be women so t

Question 35629This question is from textbook
: In her morning class, the computer teacher has 20 students, 8 of whom are women and 12 of whom are men. If her afternoon class has 30 students, how many of them must be women so that both classes have the same ratio of women to men? This question is from textbook

Answer by elima(1433) (Show Source): You can put this solution on YOUR website!
The ratio of girls in morning is;
The ratio of boys in morning is;
So we need the same ratio in the afternoon;
=
cross multiply;
5x=60
x=12
So the ratio of girls will be==
Now boys;
=
5x=90
x=18
So the ratio of boys==
So we need ;
12 girls and 18 boys
=)
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