There are 300 boys and girls in the first school year of hope primary school. In this school year, boys and girls increase by 4% and 5% respectively, with a total increase of 13 How many boys and girls are there in primary school?

Suppose that the number of girls increases by 4%, then the number of boys and girls increases by (300 × 4% = 12). In fact, the number of boys increases by 13, but one person is less. This is because the number of girls is less than the actual number (5% - 4% = 1%). Therefore, we can find the number of boys: (13-12) /

There are 300 boys in hope primary school, 30% less than girls. How many girls are there_____ -_
Fill in the quantity relation:
1. I hope there are 300 boys in primary school, 30% less than girls. How many girls are there?
___ -_ =Number of boys
2. I hope there are 300 boys in primary school, 20% less than girls. How many girls are there?
_ +_ =Number of boys
3. There are 210 pairs of leather shoes, 40% more than cloth shoes
_ +_ =_____

There are 300 boys in hope primary school, 30% less than girls. How many girls are there? (number of girls) - (30% of girls) = number of boys. 2. There are 300 boys in hope primary school, 20% less than girls. How many girls? (number of girls) - (20% of girls) = number of boys. 3

There are 240 boys in hope primary school, just four fifths of girls. How many students are there in hope primary school?

240 + 240 ÷ (4 / 5) = 540 (person)

Hope primary school has a total of M students, of which boys account for more than half of the total number of 32. How many boys and girls are there in this school

Set boys as y and girls as X
Then y = (M / 2) + 32
Therefore, there are male students (M / 2) + 32;
Female students x = M-Y = m - (M / 2) + 32

There are 300 boys and girls in the first school year of hope primary school. In this school year, boys and girls increase by 4% and 5% respectively, with a total increase of 13 How many boys and girls are there in primary school?