Question

alguem me ajuda passo a passo
regra de 3
quantos querem fazer arquitetura??

Answer 1

Os 200 alunos representam 100%, logo os os 25% de arquitetura representam:

$200~alunos~_{-----}~100\%\\~~~~x~alunos~_{-----}~25\%\\\\\\Multiplicando~Cruzado\\\\\\100~.~x~=~200~.~25\\\\\\100x~=~5000\\\\\\x~=~\frac{5000}{100}\\\\\\\boxed{x~=~50~alunos}$