20% of the girls in class have blonde hair. 16 girls do not have blonde hair. How many total students?
+267 if you need working, here it is
100%-20%=80%
let's forget the zero for now and do 16/8=2
so 10%=2 students
20% is double 10% so we need to find what is double of 2.
2*2=4 so 4 girls have blonde hair
16+4=20 total students
