The ratio of female students to male students in class 61 is 4:5. What is the proportion of female students in the whole class? There are more male students than female students ()

Four in nine, one in nine

There are 24 girls in class one of grade five, three more than boys. What percentage of the total number of the class are boys and girls?

24-3 = 21 (people) 24 + 21 = 45 (people) 21 ﹣ 45 = 71524 ﹣ 45 = 815 answer: male and female students each account for 715 and 815 of the total number of students in the class

There are 24 boys in class 3 and 2, accounting for three fifths of the class, and how many girls in the class

Girls make up two fifths of the class

In the chorus, the number of boys accounts for 7 / 5 of the number of girls, and how many of the number of boys account for the whole team?

7÷（7＋5）＝7/12

There are 24 girls in the school chorus, 25% less than boys. How many people are there in this chorus?
It's a process. Thank you

Because boys are unit one. Because they are less than boys, they use subtraction. 1-25% = 75%
If girls make up 75% of boys, unit one is boys, we don't know how much unit one is
This is the number of boys
Because it's about how many people there are, of course, male + female, male is 32, female is 24, 32 + 24 = 56

There are 24 girls and 32 boys in the school chorus. When arranging the singing formation, the number of people in each row should be the same. How many people are there at most in each row?

24=8×3
32=8×4
Maximum = 8

Dongfeng primary school has 450 students, 78 of whom are girls. How many boys and girls are there in this school?

A: there are 240 boys and 210 girls in this school

There are 314 students in a certain school, of which 2 / 3 of boys are 40 less than 4 / 5 of girls. How many boys and girls are there in this school?
I have equations, I want process!
Solution: there are x boys
(314 minus x) 4 out of 5 minus 2x out of 3 = 40
I want the process, OK
30 minutes
One hundred thousand fire "chicken"

Then you write!
4/5（314-X）-2/3X=40
251.2-4/5X-2/3X=40
251.2-22/15X=40
22/15X=211.2
X=144
So 314-x = 170
A: 144 boys and 170 girls

There are 314 students in a certain school, of which 2 / 3 are boys, 40 less than 4 / 5 are girls?

Suppose there are x girls and (314-x) boys
4/5x-2/3(314-x)=40
22/15x=748/3
x=170
314-170 = 144 (people) ｜ there are 144 boys and 170 girls
Choose me word by word!

5、 There are 20 boys in the first class, 5 less than girls. What percentage of the class are boys and girls?

20 △ 20 + 5 + 20, = 20 △ 45, = 49, (20 + 5) △ 20 + 5 + 20, = 25 △ 45, = 59

The ratio of female students to male students in class 61 is 4:5. What is the proportion of female students in the whole class? There are more male students than female students ()