Respostas

2014-04-05T11:24:05-03:00
1200 alunos ------------ 100 %
  360 alunos ------------ x 

1200x = 360 . 100
1200x = 36000
x = 36000 / 1200
x = 30 %

360 alunos correspondem a 30 % de 1200 alunos 
1 5 1
2014-04-05T11:26:00-03:00
1200 → 100%
360 → x%


1200x=36000
x=36000/1200
x=30%

Solução : Representa 30% de 1200 alunos