In a school, the ratio of boy to girls is 3:2. If there are 400 learners,how many girls are there in the school

Given that the ratio of boys to girls is 3:2, we can set up the following equation:

3x + 2x = 400

Combining like terms, we get:

5x = 400

Dividing both sides by 5, we find:

x = 80

Since x represents the ratio multiplier for girls, we must multiply it by the ratio of girls to determine the number of girls in the school:

2 * 80 = 160

Therefore, there are 160 girls in the school.