SOLUTION: In science class, there are 25% more girls than boys. If 3 girls leave, the number of boys is equal to the number of girls. How many total students are originally in class?

Question 1050874: In science class, there are 25% more girls than boys. If 3 girls leave, the number of boys is equal to the number of girls. How many total students are originally in class?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
In science class,
let boys be and girls
if there are % more girls than boys, then we have:
since %=, we have
.....eq.1
if girls leave , we have
then the number of boys is equal to the number of girls:......eq.2
from ......eq.2 we have ......eq.2a
since eq1 and eq2a have same left sides, equal right sides and solve for

....both sides multiply by

now find
......eq.2a

so, there is girls and boys

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