Question

the ratio of boys to girls in a classroom is 2:3 if there are 20 children in total how many boys are there

Answer 1

Answer:

8 boys

Step-by-step explanation:

If the ratio of boys to girls in a classroom is 2:3, and there are 20 children in total, we can first find the total number of parts in the ratio by adding the parts for boys and girls:

2+3=5

Next, we can find the number of parts that represent one child:

Total Children/Total Parts=20/5=4

Now, to find the number of boys, we multiply the number of parts for boys by the value of one part:

Number of boys=Parts for boys×One part=2×4=8

Therefore, there are 8 boys in the classroom.

Answer 2

Answer:

There are 8 boys in the classroom.

Step-by-step explanation:

To determine the number of boys in the classroom, we need to calculate two parts of the ratio: the total number of parts representing boys and the respective fraction of that total.

Given that the ratio of boys to girls is 2:3, the total number of parts representing the class is 2 + 3 = 5.

To find the number of boys, divide the total number of parts (5) by the sum of the parts (2+3=5), and then multiply by the total number of children in the classroom (20):

(2 parts / 5 parts) * 20 children = 8 boys

Therefore, there are 8 boys in the classroom.