SOLUTION: 20% of a class is boys and 20 are girls. What's the ratio of girls to boys? How many pupils altogether?
Algebra.Com
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) (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. ☺☺☺☺
RELATED QUESTIONS
in a class the ratio of boys to girls is 3:2. If there are 11 more boys than girls,how... (answered by richwmiller)
The ratio of boys to girls in a class is 3:5.if there are 8 more girls than boys,how many (answered by 428225,Gogonati)
Answer this math question "in a class the ratio of the number of boys to the number of... (answered by josmiceli)
What is the ratio of boys to girls if there are 20 boys and 10... (answered by Cromlix)
The ratio of boys to girls in a class is 3:4.I f there are 42 pupils in class, how many... (answered by ikleyn)
The ratio of boys to girls in a school is 2:3 there are 1100 pupils how many are girls
(answered by Edwin McCravy)
In a class 0f 350 pupils, there is a 20% more of girls. How many are... (answered by Boreal)
The ratio of girls to boys in a class is 9 : 7. If there are 10 more girls than boys, how (answered by ewatrrr)
miss garcia has 20 boys and 15 girls in her Algebra class. what percent of the pupils are (answered by ikleyn)