SOLUTION: 20% of a class is boys and 20 are girls. What's the ratio of girls to boys? How many pupils altogether?

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Question 1058751: 20% of a class is boys and 20 are girls. What's the ratio of girls to boys? How many pupils altogether?
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
If 20% of the class are boys, then they represent 1/5 of the class. Therefore, the 20 girls represent 4/5th of the class. So:
4n/5-20
n=25
There are 25 total students in the class; in which 5 are boys. ☺☺☺☺