SOLUTION: In a school out of 300 students 70 percent are girls and 30 percent are boys if 30 girls leave And no new boy admitted what is the new percentage of girls in the school

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Question 1050243: In a school out of 300 students 70 percent are girls and 30 percent are boys if 30 girls leave And no new boy admitted what is the new percentage of girls in the school

Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
Before changes, x girls and y boys.

x=300%280.7%29=210
and
y=300%280.3%29=90.


Thirty girls leave.
Percentage as girls?
%28%28210-30%29%2F%28300-30%29%29%2A100, the new percent girls.