Question

quanto porcento de 250 reais representa 75 R$

Answer 1

250 - 100%
75 - x

x = 7500/250
x = 30%

Answer 2

$x\%*250 = 75\\\\0,01x*250 = 75\\\\2,5x = 75\\\\\boxed{\boxed{x = 30\%}}$

Espero ter ajudado. :))