Ratio between the girls one long 11 class of 40 students is 2:3 five, new students joined the class how many of them must be boys so that the both between girls and boys became 4:5?

In a class of 45 students 3/5 of the total number of students are girls how many students of the class are boys?

In a class of 40 students, 45% are girls. Find the number of boys in the class .

In a class of 36 students, 20 are girls and the rest are boys. Find the ratio of: the number of boys to the number of girls.

There are 45 students in a class and 3/5 of them are boys. How many girls are there in the class?

There are 45 students in a class and 3/5 of them are boys. How many girls are there in the class?

There are 42 students in a class and 5/7 of the students are boys. How many girls are there in the class?

In a class of 36 students, 20 are girls and the rest are boys. Find the ratio of: the number of boys to the total number of students in the class.

In a class of 36 students, 20 are girls and the rest are boys. Find the ratio of: the number of girls to the number of boys.

The ratio of the number of boys to the number of girls in a school of 640 students is 5:3. If 30 more girls are admitted in the school, then how many more boys should be admitted so that the ratio of boys to that of girls, becomes 14:9?