In this year’s 7 th 7th grade class, there are 4 boys for every 5 girls. How many girls are in the class if there are 20 boys in the class?

Question

asked May 25, 2021 153k views

1 Answer

Lgabster · Answer 1 · 2021-05-30T14:53:19+0000

Answer:

The answer to your question is 25 girls

Explanation:

Data

4 boys for every 5 girls

20 boys ? number of girls

To solve this problem use proportions

Number of boys : Number of girls :: New number of boys : New number of

girls

Substitution

4 : 5 :: 20 : x

Solve for x

x = (5 x 20) / 4

Simplification

x = 100 / 4

Result

x = 25

There are 25 girls